Better document ways to set config search.

Add <seealso> references in the docs between GitRepositoryOptions and
GlobalSettings.SetConfigSearchPaths.

Author: Ryan Roden-Corrent

LibGit2Sharp/GlobalSettings.cs

@@ -286,6 +286,8 @@ public static IEnumerable<string> GetConfigSearchPaths(ConfigurationLevel level)
 
         /// <summary>
         /// Set the paths under which libgit2 searches for the configuration file of a given level.
+        ///
+        /// <seealso cref="RepositoryOptions"/>.
         /// </summary>
         /// <param name="level">The level (global/system/XDG) of the config.</param>
         /// <param name="paths">

LibGit2Sharp/RepositoryOptions.cs

@@ -32,6 +32,7 @@ public sealed class RepositoryOptions
         ///   The path has either to lead to an existing valid configuration file,
         ///   or to a non existent configuration file which will be eventually created.
         /// </para>
+        /// <seealso cref="GlobalSettings.SetConfigSearchPaths"/>.
         /// </summary>
         public string GlobalConfigurationLocation { get; set; }
 
@@ -41,6 +42,7 @@ public sealed class RepositoryOptions
         ///   The path has either to lead to an existing valid configuration file,
         ///   or to a non existent configuration file which will be eventually created.
         /// </para>
+        /// <seealso cref="GlobalSettings.SetConfigSearchPaths"/>.
         /// </summary>
         public string XdgConfigurationLocation { get; set; }
 
@@ -50,6 +52,7 @@ public sealed class RepositoryOptions
         ///   The path has to lead to an existing valid configuration file,
         ///   or to a non existent configuration file which will be eventually created.
         /// </para>
+        /// <seealso cref="GlobalSettings.SetConfigSearchPaths"/>.
         /// </summary>
         public string SystemConfigurationLocation { get; set; }