Update README

* satisfy markdown lint
* fix issue with HTML code tag

Author: thimmy687

README.md

@@ -1,43 +1,49 @@
-Git.hub
-=======
+# Git.hub
 
 A simple API in terms of querying github with C#, based on RestSharp.
 
-Usage
------
+## Usage
 
 ### Create a client instance
+
 ```csharp
 using Git.hub;
 Client client = new Client();
 ```
 
 ### Login
+
 The recommended way to login is to use OAuth tokens provided by Github,
 as detailed on [the API docs](http://developer.github.com/v3/oauth/).
+
 ```csharp
 client.setOAuth2Token("0fd...");
 ```
+
 You could, for example, display a webbrowser control to navigate to the
 site and listen to the related events for when a redirect to your
-given site happens, use the ?code=<code> with the following line:
+given site happens, use the `?code=<code>` with the following line:
+
 ```csharp
 OAuth2Helper.requestToken(client_id, client_secret, <code>
 ```
 
 Albeit not recommended, logging in with Username and Password is possible:
+
 ```csharp
 client.setCredentials("mabako", "super duper password");
 ```
 
 To retrieve the currently logged in user, use the following:
+
 ```csharp
 User user = client.getUser();
 ```
 
-
 ### Repositories
+
 To fetch repositories, the following lines of code should suffice your needs:
+
 ```csharp
 IList<Repository> repos = client.getRepositories("mabako");
 IList<Repository> orgRepos = client.getOrganizationRepositories("github");
@@ -47,35 +53,44 @@ Repository repo = client.getRepository("mabako", "Git.hub");
 /* Requires login */
 IList<Repository> ownRepos = client.getRepositories();
 ```
+
 Please take note that the latter includes all repositories you have access to,
 if you certainly want your own repos only filter for Repository.Owner.Login.
 
 ### Simple Repository Actions
+
 Fork the repo:
+
 ```csharp
 Repository forked = repo.CreateFork();
 ```
 
 List branches:
+
 ```csharp
 IList<Branch> branches = repo.GetBranches();
 ```
 
 ### Pull Requests
+
 You can fetch all of the repo's pull requests or just one, use as fit.
+
 ```csharp
 IList<PullRequest> pullrequests = repo.GetPullRequests();
 PullRequest pullrequest = repo.GetPullRequest(1);
 ```
 
-Alternatively, a new pull request may be created with
+Alternatively, a new pull request may be created with:
+
 ```csharp
 var pullrequest = repo.CreatePullRequest("mabako:new-feature", "master", "Subject", "Details...");
 ```
+
 Take note that 'repo' is the repo in which the pull request is created,
 your own username is usually in the first parameter, along with your branch.
 
 A few basic actions on pull requests are defined:
+
 ```csharp
 pullrequest.GetCommits();
 pullrequest.Open();
@@ -88,6 +103,7 @@ pullrequest.GetIssueComments()
 ```
 
 To reply to a pull request, fetch the issue first with ToIssue() and use
+
 ```csharp
 issue.CreateComment("My comment");
-```
+```