tidy up some xml-docs while i'm in here

Octokit/Http/ApiResponse.cs

@@ -1,11 +1,24 @@
 namespace Octokit.Internal
 {
+    /// <summary>
+    /// Wrapper for a response from the API
+    /// </summary>
+    /// <typeparam name="T">Payload contained in the response</typeparam>
     public class ApiResponse<T> : IApiResponse<T>
     {
+        /// <summary>
+        /// Create a ApiResponse from an existing request
+        /// </summary>
+        /// <param name="response">An existing request to wrap</param>
         public ApiResponse(IResponse response) : this(response, GetBodyAsObject(response))
         {
         }
 
+        /// <summary>
+        /// Create a ApiResponse from an existing request and object
+        /// </summary>
+        /// <param name="response">An existing request to wrap</param>
+        /// <param name="bodyAsObject">The payload from an existing request</param>
         public ApiResponse(IResponse response, T bodyAsObject)
         {
             Ensure.ArgumentNotNull(response, "response");
@@ -14,8 +27,14 @@
             Body = bodyAsObject;
         }
 
+        /// <summary>
+        /// The payload of the response
+        /// </summary>
         public T Body { get; private set; }
 
+        /// <summary>
+        /// The context of the response
+        /// </summary>
         public IResponse HttpResponse { get; private set; }
 
         static T GetBodyAsObject(IResponse response)

Octokit/Http/HttpVerb.cs

@@ -2,11 +2,11 @@
 
 namespace Octokit.Internal
 {
-    public static class HttpVerb
+    internal static class HttpVerb
     {
         static readonly HttpMethod patch = new HttpMethod("PATCH");
 
-        public static HttpMethod Patch
+        internal static HttpMethod Patch
         {
             get { return patch; }
         }

Octokit/Http/ICredentialStore.cs

@@ -3,8 +3,15 @@ using System.Threading.Tasks;
 
 namespace Octokit
 {
+    /// <summary>
+    /// Abstraction for interacting with credentials
+    /// </summary>
     public interface ICredentialStore
     {
+        /// <summary>
+        /// Retrieve the credentials from the underlying store
+        /// </summary>
+        /// <returns>A continuation containing credentials</returns>
         [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate", Justification="Nope")]
         Task<Credentials> GetCredentials();
     }

Octokit/Http/InMemoryCredentialStore.cs

@@ -2,10 +2,17 @@
 
 namespace Octokit.Internal
 {
+    /// <summary>
+    /// Abstraction for interacting with credentials
+    /// </summary>
     public class InMemoryCredentialStore : ICredentialStore
     {
         readonly Credentials _credentials;
 
+        /// <summary>
+        /// Create an instance of the InMemoryCredentialStore
+        /// </summary>
+        /// <param name="credentials"></param>
         public InMemoryCredentialStore(Credentials credentials)
         {
             Ensure.ArgumentNotNull(credentials, "credentials");
@@ -13,6 +20,10 @@ namespace Octokit.Internal
             _credentials = credentials;
         }
 
+        /// <summary>
+        /// Retrieve the credentials from the underlying store
+        /// </summary>
+        /// <returns>A continuation containing credentials</returns>
         public Task<Credentials> GetCredentials()
         {
             return Task.FromResult(_credentials);