diff --git a/README.md b/README.md
index 7d310f5..eeaa69d 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,12 @@
 # <img src="https://osbc-blockchain.herokuapp.com/assets/logo-70825bc795d25668cf4f11b06b990ed0d1c2cae887acce0625e5059226a7946a.png" width="25" height="25"> Outerspace Blockchain
 <!-- Outerspace Logo -->
+
+### This application is instable and under development.
+### Please, use it with caution and at your own risk.
 ### A Ruby implementation of web blockchain framework.
 #### Developed using TDD (Test Driven Development).
 #### Github Actions CI/CD pipeline.
-#### Firestore
+#### Firestore is used to store the blockchain.
 
 #### Simplecov is used to test code coverage.
 
@@ -14,6 +17,28 @@
 
 ## Build Version: 0.2.0
 
+## Todo
+* [ ] Firebase integration (this will be use instead of Redis management)
+* [ ] Add and correct tests
+* [ ] Add and correct documentation
+* [ ] Add user verification methods
+* [ ] Better mobile layout
+* [ ] Create the price visualization and the price history api
+* [ ] Add more blockchain features
+* [ ] Add more blockchain tests
+* [ ] Add more blockchain documentation
+* [ ] Add nft's classification class
+* [ ] Add nft's modularization class
+* [ ] Add nft's generator class
+* [ ] Benchmark blockchain and mining
+* [ ] Create a blockchain explorer
+* [ ] Create a default blockchain wallet android app generator with flutter
+* [ ] Create generators that will work with rails and flutter at the same time
+* [ ] Create the user marketplace
+* [ ] Integrate Blockchain Api in other projects
+
+Kubernets integration will be worked on in the future.
+
 ## System dependencies
     1. Docker
     2. Postgresql
@@ -39,7 +64,6 @@ gem install osbc
 ```bash
 osbc PATH
 ```
-
 ### Compile OSBC from source
 ========================
 <!-- Compile OSBC from source -->
diff --git a/app/views/layouts/application.html.erb b/app/views/layouts/application.html.erb
index bfe58f8..fd52a4f 100644
--- a/app/views/layouts/application.html.erb
+++ b/app/views/layouts/application.html.erb
@@ -8,7 +8,7 @@
       function gtag(){dataLayer.push(arguments);}
       gtag('js', new Date());
 
-      gtag('config', <%= ENV['GOOGLE_ANALYTICS_ID'] %>);
+      gtag('config', '<%= ENV['GOOGLE_ANALYTICS_ID'] %>');
     </script>
     <title>OuterspaceBlockchain</title>
     <meta name="viewport" content="width=device-width,initial-scale=1">
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 28b212b..f0484bd 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -4,6 +4,8 @@
 
 Rails.application.configure do
   config.hosts << "lvh.me"
+  config.hosts << "outerspacecoding.com"
+  config.hosts << "osbc.outerspacecoding.com"
   # Settings specified here will take precedence over those in config/application.rb.
 
   # In the development environment your application's code is reloaded any time
diff --git a/mining_concept.ipynb b/mining_concept.ipynb
index 3924276..2fe80a2 100644
--- a/mining_concept.ipynb
+++ b/mining_concept.ipynb
@@ -89,8 +89,8 @@
     }
    ],
    "source": [
-    "key = '9e8b3f4bf92577861e06e3bc84a809794dd6a7ab9da1070a78eb763b3399595a'\n",
-    "secret = 'a239c12ecc42911ecbc3b23a9539976caaa60f7d40028dea17cb67cc538c21bd'\n",
+    "key = \n",
+    "secret = \n",
     "\n",
     "headers = {\n",
     "    'X-API-KEY': key,\n",
@@ -245,7 +245,7 @@
     }
    ],
    "source": [
-    "hash_to_send = '99893b819abfa80498f244fddd080f570cecdc994199d5c6a8148141401cdff1'\n",
+    "hash_to_send = \n",
     "\n",
     "params = { 'user_confirmation_hash' : hash_to_send }\n",
     "confirm_request = re.post('http://localhost/api/v1/confirm_block', headers=headers, params=params)\n",
@@ -270,7 +270,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.2"
+   "version": "3.9.2 (default, Feb 28 2021, 17:03:44) \n[GCC 10.2.1 20210110]"
   },
   "orig_nbformat": 4,
   "vscode": {