Added links to Gmod.NET in README files

Author: GlebChili

GmodNET.Extensions.Hosting/README.md

@@ -1,3 +1,3 @@
 # GmodNET.Extension.Hosting
 
-An extension library to build Gmod.NET optimized .NET Generic Hosts.
+An extension library to build [Gmod.NET](https://github.com/GmodNET/GmodDotNet) optimized .NET Generic Hosts.

README.md

@@ -1,6 +1,6 @@
 # Extensions
-A collection of extension libraries for Gmod.NET
+A collection of extension libraries for [Gmod.NET](https://github.com/GmodNET/GmodDotNet)
 
 ## List of Extensions
 
-1. **GmodNET.Extension.Hosting**: a helper library for working with [.NET Generic Host](https://docs.microsoft.com/en-us/dotnet/core/extensions/generic-host) in Gmod.NET.
+1. **GmodNET.Extension.Hosting**: a helper library for working with [.NET Generic Host](https://docs.microsoft.com/en-us/dotnet/core/extensions/generic-host) in [Gmod.NET](https://github.com/GmodNET/GmodDotNet).