fix typo

Author: coldnight

README.md

@@ -109,10 +109,10 @@ pip install -e homu
     ))
     ```
 
-  - Buildbot 0.9 via GithubStatusPush
+  - Buildbot 0.9 via GitHub Status
 
-    Buildbot 0.9 support [GithubStatusPush](http://docs.buildbot.net/latest/manual/cfg-reporters.html#githubstatuspush),
-    so we can use this to integrate with Github and Buildbot 0.9.
+    Buildbot 0.9 support [GitHubStatusPush](http://docs.buildbot.net/latest/manual/cfg-reporters.html#githubstatuspush),
+    so we can use this to integrate with GitHub and Buildbot 0.9.
 
     Insert the following code to the `master.cfg` file:
 
@@ -122,14 +122,14 @@ pip install -e homu
 
 
     context = Interpolate("buildbot/%(prop:buildername)s")
-    gs = reporters.GitHubStatusPush(token='A Github personal acess token',
+    gs = reporters.GitHubStatusPush(token='A GitHub personal access token',
                                     context=context,
                                     startDescription='Build started.',
                                     endDescription='Build done.')
     c['services'].append(gs)
     ```
 
-    **Note**: Buildbot 0.9 use project to detect the repository at Github. So made your `project` to `<owner>/<repo>` 
+    **Note**: Buildbot 0.9 use project to detect the repository at GitHub. So made your `project` to `<owner>/<repo>` 
     in [GitPoller](http://docs.buildbot.net/latest/manual/cfg-changesources.html#gitpoller).
 
     Now the config of the repository in Homu's config file should looks like below: