diff --git a/README.md b/README.md
index c8651ccf7..c175d035e 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,15 @@ opt-level = "z"
 incremental = false
 opt-level = "z"
 
+# Following features helps are used when building or testing a contract
+[features]
+constructor = []  # required
+constructor-test = [] # required
+```
+
+```toml
+# sewup.toml
+
 # Following section including the parameters to deploy the contract
 [deploy]
 url = "http://localhost:8545"  # url for rpc node
@@ -68,11 +77,6 @@ address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"  # account address
 # gas = 5000000 # optional
 # gas_price = 1 # optional
 
-
-# Following features helps are used when building or testing a contract
-[features]
-constructor = []  # required
-constructor-test = [] # required
 ```
 Place [.cargo/config](./examples/hello-contract/.cargo/config) file in your project to specify the flags for build.
 
diff --git a/SewUp.wiki b/SewUp.wiki
index 9046f0697..06eeee5f4 160000
--- a/SewUp.wiki
+++ b/SewUp.wiki
@@ -1 +1 @@
-Subproject commit 9046f0697a5e6de8bc334f7f754a0e3406e26864
+Subproject commit 06eeee5f4058cbb29c1c2390550a8c64b4a9897d
diff --git a/cargo-sewup/src/build.rs b/cargo-sewup/src/build.rs
index 6ba177f48..0d3302347 100644
--- a/cargo-sewup/src/build.rs
+++ b/cargo-sewup/src/build.rs
@@ -10,14 +10,14 @@ use tokio::{
 use wasmprinter::print_file;
 use wat;
 
-use cargo_sewup::config::Toml;
+use cargo_sewup::config::CargoToml;
 use cargo_sewup::deploy_wasm;
 
 async fn check_cargo_toml() -> Result<String> {
     let config_contents = read_to_string("Cargo.toml")
         .await
         .context("can not read Cargo.toml")?;
-    let config: Toml = toml::from_str(config_contents.as_str())?;
+    let config: CargoToml = toml::from_str(config_contents.as_str())?;
 
     // TODO: more toml config checking here
 
diff --git a/cargo-sewup/src/config.rs b/cargo-sewup/src/config.rs
index d9fd9f6d7..ba36794a8 100644
--- a/cargo-sewup/src/config.rs
+++ b/cargo-sewup/src/config.rs
@@ -5,7 +5,6 @@ use serde_derive::Deserialize;
 use tokio::fs::read_to_string;
 
 use crate::constants::{DEFAULT_GAS, DEFAULT_GAS_PRICE};
-use crate::errors::DeployError;
 
 #[derive(Deserialize)]
 pub struct Deploy {
@@ -37,20 +36,20 @@ pub struct Package {
 }
 
 #[derive(Deserialize)]
-pub struct Toml {
+pub struct CargoToml {
     pub package: Package,
-    pub deploy: Option<Deploy>,
+}
+
+#[derive(Deserialize)]
+pub struct DeployToml {
+    pub deploy: Deploy,
 }
 
 pub async fn get_deploy_config() -> Result<Deploy> {
-    let config_contents = read_to_string("Cargo.toml")
+    let config_contents = read_to_string("sewup.toml")
         .await
-        .context("can not read Cargo.toml")?;
-    let config: Toml = toml::from_str(config_contents.as_str())?;
+        .context("can not read sewup.toml")?;
+    let config: DeployToml = toml::from_str(config_contents.as_str())?;
 
-    if let Some(deploy) = config.deploy {
-        Ok(deploy)
-    } else {
-        Err(DeployError::ConfigIncorrect.into())
-    }
+    Ok(config.deploy)
 }
diff --git a/examples/default-contract/Cargo.toml b/examples/default-contract/Cargo.toml
index afd496637..0a2238439 100644
--- a/examples/default-contract/Cargo.toml
+++ b/examples/default-contract/Cargo.toml
@@ -27,13 +27,6 @@ opt-level = "z"
 incremental = false
 opt-level = "z"
 
-[deploy]
-url = "http://localhost:8545"
-private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
-address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
-gas = 5000000
-gas_price = 1
-
 [features]
 constructor = []
 constructor-test = []
diff --git a/examples/default-contract/sewup.toml b/examples/default-contract/sewup.toml
new file mode 100644
index 000000000..e83d91670
--- /dev/null
+++ b/examples/default-contract/sewup.toml
@@ -0,0 +1,7 @@
+# This config file is for examples, it is good for you to ignore this config in your sewup project
+[deploy]
+url = "http://localhost:8545"
+private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
+gas = 5000000
+gas_price = 1
diff --git a/examples/erc1155-contract/Cargo.toml b/examples/erc1155-contract/Cargo.toml
index a88291ab3..e6804dd7d 100644
--- a/examples/erc1155-contract/Cargo.toml
+++ b/examples/erc1155-contract/Cargo.toml
@@ -27,11 +27,6 @@ opt-level = "z"
 incremental = false
 opt-level = "z"
 
-[deploy]
-url = "http://localhost:8545"
-private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
-address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
-
 [features]
 constructor = []
 constructor-test = []
diff --git a/examples/erc1155-contract/sewup.toml b/examples/erc1155-contract/sewup.toml
new file mode 100644
index 000000000..16b9bab71
--- /dev/null
+++ b/examples/erc1155-contract/sewup.toml
@@ -0,0 +1,5 @@
+# This config file is for examples, it is good for you to ignore this config in your sewup project
+[deploy]
+url = "http://localhost:8545"
+private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
diff --git a/examples/erc20-contract/Cargo.toml b/examples/erc20-contract/Cargo.toml
index 4e8216043..5a3f5bc20 100644
--- a/examples/erc20-contract/Cargo.toml
+++ b/examples/erc20-contract/Cargo.toml
@@ -27,11 +27,6 @@ opt-level = "z"
 incremental = false
 opt-level = "z"
 
-[deploy]
-url = "http://localhost:8545"
-private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
-address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
-
 [features]
 constructor = []
 constructor-test = []
diff --git a/examples/erc20-contract/sewup.toml b/examples/erc20-contract/sewup.toml
new file mode 100644
index 000000000..16b9bab71
--- /dev/null
+++ b/examples/erc20-contract/sewup.toml
@@ -0,0 +1,5 @@
+# This config file is for examples, it is good for you to ignore this config in your sewup project
+[deploy]
+url = "http://localhost:8545"
+private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
diff --git a/examples/erc721-contract/Cargo.toml b/examples/erc721-contract/Cargo.toml
index 741f744c7..95415d54c 100644
--- a/examples/erc721-contract/Cargo.toml
+++ b/examples/erc721-contract/Cargo.toml
@@ -27,11 +27,6 @@ opt-level = "z"
 incremental = false
 opt-level = "z"
 
-[deploy]
-url = "http://localhost:8545"
-private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
-address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
-
 [features]
 constructor = []
 constructor-test = []
diff --git a/examples/erc721-contract/sewup.toml b/examples/erc721-contract/sewup.toml
new file mode 100644
index 000000000..16b9bab71
--- /dev/null
+++ b/examples/erc721-contract/sewup.toml
@@ -0,0 +1,5 @@
+# This config file is for examples, it is good for you to ignore this config in your sewup project
+[deploy]
+url = "http://localhost:8545"
+private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
diff --git a/examples/hello-contract/Cargo.toml b/examples/hello-contract/Cargo.toml
index 6247dcd9d..14e22f73a 100644
--- a/examples/hello-contract/Cargo.toml
+++ b/examples/hello-contract/Cargo.toml
@@ -37,11 +37,6 @@ opt-level = "z"
 incremental = false
 opt-level = "z"
 
-[deploy]
-url = "http://localhost:8545"
-private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
-address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
-
 [features]
 constructor = []
 constructor-test = []
diff --git a/examples/hello-contract/sewup.toml b/examples/hello-contract/sewup.toml
new file mode 100644
index 000000000..16b9bab71
--- /dev/null
+++ b/examples/hello-contract/sewup.toml
@@ -0,0 +1,5 @@
+# This config file is for examples, it is good for you to ignore this config in your sewup project
+[deploy]
+url = "http://localhost:8545"
+private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
diff --git a/examples/kv-contract/Cargo.toml b/examples/kv-contract/Cargo.toml
index 8eef5c11b..3db16db8c 100644
--- a/examples/kv-contract/Cargo.toml
+++ b/examples/kv-contract/Cargo.toml
@@ -41,11 +41,6 @@ opt-level = "z"
 incremental = false
 opt-level = "z"
 
-[deploy]
-url = "http://localhost:8545"
-private = "0000000000000000000000000000000000000000000000000000000000000000"
-address = "0x0000000000000000000000000000000000000000"
-
 [features]
 client = [ "web3", "tokio", "secp256k1", "reqwest", "serde_json", "bincode", "cargo-sewup"]
 constructor = []
diff --git a/examples/kv-contract/sewup.toml b/examples/kv-contract/sewup.toml
new file mode 100644
index 000000000..4ec36daa8
--- /dev/null
+++ b/examples/kv-contract/sewup.toml
@@ -0,0 +1,5 @@
+# This config file is for examples, it is good for you to ignore this config in your sewup project
+[deploy]
+url = "http://localhost:8545"
+private = "0000000000000000000000000000000000000000000000000000000000000000"
+address = "0x0000000000000000000000000000000000000000"
diff --git a/examples/rdb-contract/Cargo.toml b/examples/rdb-contract/Cargo.toml
index a6eae69e8..84dd99a9d 100644
--- a/examples/rdb-contract/Cargo.toml
+++ b/examples/rdb-contract/Cargo.toml
@@ -43,11 +43,6 @@ opt-level = "z"
 incremental = false
 opt-level = "z"
 
-[deploy]
-url = "http://localhost:8545"
-private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
-address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
-
 [features]
 client = [ "web3", "tokio", "secp256k1", "reqwest", "serde_json", "bincode", "cargo-sewup"]
 constructor = []
diff --git a/examples/rdb-contract/sewup.toml b/examples/rdb-contract/sewup.toml
new file mode 100644
index 000000000..16b9bab71
--- /dev/null
+++ b/examples/rdb-contract/sewup.toml
@@ -0,0 +1,5 @@
+# This config file is for examples, it is good for you to ignore this config in your sewup project
+[deploy]
+url = "http://localhost:8545"
+private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
diff --git a/examples/rusty-contract/Cargo.toml b/examples/rusty-contract/Cargo.toml
index a2d1090fc..5e6d03753 100644
--- a/examples/rusty-contract/Cargo.toml
+++ b/examples/rusty-contract/Cargo.toml
@@ -25,11 +25,6 @@ opt-level = "z"
 incremental = false
 opt-level = "z"
 
-[deploy]
-url = "http://localhost:8545"
-private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
-address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
-
 [features]
 constructor = []
 constructor-test = []
diff --git a/examples/rusty-contract/sewup.toml b/examples/rusty-contract/sewup.toml
new file mode 100644
index 000000000..16b9bab71
--- /dev/null
+++ b/examples/rusty-contract/sewup.toml
@@ -0,0 +1,5 @@
+# This config file is for examples, it is good for you to ignore this config in your sewup project
+[deploy]
+url = "http://localhost:8545"
+private = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+address = "0xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"