Fix typo: initializaiton => initialization

github3/github.py

@@ -1478,7 +1478,7 @@ class GitHub(GitHubCore):
 class GitHubEnterprise(GitHub):
     """For GitHub Enterprise users, this object will act as the public API to
     your instance. You must provide the URL to your instance upon
-    initializaiton and can provide the rest of the login details just like in
+    initialization and can provide the rest of the login details just like in
     the :class:`GitHub <GitHub>` object.
     There is no need to provide the end of the url (e.g., /api/v3/), that will