Update folder READMEs with list of markdown files

Frameworks-or-Libraries/README.md

@@ -1,4 +1,4 @@
 # 📚 Contents
 
-- [Angular.md](Angular.md)
-- [React.md](React.md)
+- [Angular](Angular.md)
+- [React](React.md)

Frontend/README.md

@@ -1,4 +1,4 @@
 # 📚 Contents
 
-- [html.md](html.md)
-- [CSS.md](CSS.md)
+- [Html](html.md)
+- [Css](CSS.md)

Languages/README.md

@@ -1,7 +1,7 @@
 # 📚 Contents
 
-- [markdown.md](markdown.md)
-- [Javascript.md](Javascript.md)
-- [RUST.md](RUST.md)
-- [python.md](python.md)
-- [Typescript.md](Typescript.md)
+- [Markdown](markdown.md)
+- [Javascript](Javascript.md)
+- [Rust](RUST.md)
+- [Python](python.md)
+- [Typescript](Typescript.md)

README.md

@@ -13,17 +13,17 @@ Here are the programming languages covered in this repository:
 # 📚 Contents
 
 - 📂 Frameworks-or-Libraries
-  - 📄 [Angular.md](./Frameworks-or-Libraries/Angular.md)
-  - 📄 [React.md](./Frameworks-or-Libraries/React.md)
+  - 📄 [Angular](./Frameworks-or-Libraries/Angular.md)
+  - 📄 [React](./Frameworks-or-Libraries/React.md)
 - 📂 Frontend
-  - 📄 [CSS.md](./Frontend/CSS.md)
-  - 📄 [html.md](./Frontend/html.md)
+  - 📄 [Css](./Frontend/CSS.md)
+  - 📄 [Html](./Frontend/html.md)
 - 📂 Languages
-  - 📄 [Javascript.md](./Languages/Javascript.md)
-  - 📄 [RUST.md](./Languages/RUST.md)
-  - 📄 [Typescript.md](./Languages/Typescript.md)
-  - 📄 [markdown.md](./Languages/markdown.md)
-  - 📄 [python.md](./Languages/python.md)
+  - 📄 [Javascript](./Languages/Javascript.md)
+  - 📄 [Rust](./Languages/RUST.md)
+  - 📄 [Typescript](./Languages/Typescript.md)
+  - 📄 [Markdown](./Languages/markdown.md)
+  - 📄 [Python](./Languages/python.md)
 <!-- END CONTENTS -->
 ## 🌟 Why Use Cheatsheets?