Change titles in C# resources

src/content/resources/language/c-sharp/access-modifiers.md

@@ -2,7 +2,7 @@
 authors:
   - "Stone_Red#2890"
 created_at: 2021/08/07
-title: C#
+title: Access Modifiers
 external_resources:
   - text: Access Modifiers
     href: "https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/access-modifiers"

src/content/resources/language/c-sharp/coding-conventions.md

@@ -2,7 +2,7 @@
 authors:
   - "Stone_Red#2890"
 created_at: 2021/08/07
-title: C#
+title: Coding Conventions
 external_resources:
   - text: Coding Conventions
     href: "https://docs.microsoft.com/en-us/dotnet/csharp/fundamentals/coding-style/coding-conventions"

src/content/resources/language/c-sharp/intro.md

@@ -19,7 +19,7 @@ title: C#
 
 - [Fundamentals of Computer Programming with C#](https://introprogramming.info/english-intro-csharp-book/)
 
-###### Others
+###### Discord (bot) libraries
 
 - [D#+](https://github.com/DSharpPlus/DSharpPlus/)
 - [D#+ Documentation](https://dsharpplus.github.io/)