Update github server copy

Author: qodesmith

servers/github-official/server.yaml

@@ -23,7 +23,7 @@ config:
     - name: github.personal_access_token
       env: GITHUB_PERSONAL_ACCESS_TOKEN
       example: <YOUR_TOKEN>
-      description: You can create a Github personal access token [here](https://github.com/settings/personal-access-tokens/new)
+      description: You can create a GitHub personal access token [on GitHub](https://github.com/settings/personal-access-tokens/new)
 oauth:
   - provider: github
     secret: github.personal_access_token