chore: Add comments to public methods

- rename GetRepo to GetDirectoryForRegisteredRepo so it's actually doing what it says

src/ModuleCore/Git/GitManager.cs

@@ -24,6 +24,10 @@ public class GitManager
 		InitialiseRegistrations();
 	}
 
+	/// <summary>
+	/// Returns the current <see cref="GitManager"/> instance. If no instance has been created, returns a new instance
+	/// and then the same instance every call after.
+	/// </summary>
 	public static GitManager Instance => GitManagerInstance.Value;
 
 	/// <summary>
@@ -128,6 +132,11 @@ public class GitManager
 		});
 	}
 
+	/// <summary>
+	/// Unregisters a git repo registration by name. If no registration exists an exception will be thrown.
+	/// </summary>
+	/// <param name="registrationName"></param>
+	/// <exception cref="Exception"></exception>
 	public void UnregisterRepo(string registrationName)
 	{
 		_db.InConnection(conn =>
@@ -195,7 +204,13 @@ public class GitManager
 			.ToList();
 	}
 
-	public string GetRepo(string? registeredName)
+	/// <summary>
+	/// Returns the file location for a git repo registration by name.
+	/// </summary>
+	/// <param name="registeredName"></param>
+	/// <returns></returns>
+	/// <exception cref="Exception"></exception>
+	public string GetDirectoryForRegisteredRepo(string? registeredName)
 	{
 		if (string.IsNullOrEmpty(registeredName))
 		{