feat: add more solidity content

.editorconfig

@@ -0,0 +1,9 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = crlf
+charset = utf-8
+trim_trailing_whitespace = false
+insert_final_newline = false

.github/workflows/congrats.yml

@@ -0,0 +1,12 @@
+name: Congrats on completing the challenge 🎉
+
+on:
+  issues:
+    types: ["submission"]
+
+jobs:
+  congrats:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ../../src/packages/github-action/

.gitignore

@@ -7,3 +7,5 @@ typechain
 #Hardhat files
 cache
 artifacts
+
+.vscode

TODO.md

@@ -0,0 +1,17 @@
+## TODO
+
+### Content
+
+-   Basics of Solidity
+-   Data Types
+    -   Integers
+        -   ~~Math operators~~
+        -   ~~Comparision operators~~
+        -   Bit wise operators
+    -   Address
+    -   Arrays
+        -   Array operations
+    -   Structs
+        -   Structs and arrays
+-   Variables
+-   Functions