Add GitHub instructions

Per Issue https://github.com/puppetlabs/control-repo/issues/26

README.md

@@ -6,7 +6,7 @@ Table of Contents
     * [Copy This Repo Into Your Own Git Server](#copy-this-repo-into-your-own-git-server)
       * [GitLab](#gitlab)
       * [Stash](#stash)
-      * [Github](#github)
+      * [GitHub](#github)
 
 Created by [gh-md-toc](https://github.com/ekalinin/github-markdown-toc.go)
 
@@ -69,6 +69,26 @@ The major points are:
 
 Coming soon!
 
-### Github
+### GitHub
 
-Coming soon!
+1. Prepare your local git client to authenticate with GitHub.com or a local GitHub Enterprise instance.
+  - https://help.github.com/articles/generating-ssh-keys/
+  - https://help.github.com/articles/adding-a-new-ssh-key-to-your-github-account/
+
+2. Create a repository called `control-repo` in your user account or organization.  Ensure that "Initialize this repository with a README" is not selected.
+  - https://help.github.com/articles/creating-a-new-repository/
+
+3. Make a note of your repository URL (HTTPS or SSH, depending on your security configuration).
+
+4. Clone this control repository to your laptop/workstation:
+  - `git clone <repository url>`
+  - `cd control-repo`
+
+5. Remove this repository as the origin remote:
+  - `git remote remove origin`
+
+6. Add your internal repository as the origin remote:
+  - `git remote add origin <url of your github repository>`
+
+7. Push the production branch of the repository from your machine up to your git server
+  - `git push origin production`