Demo on GitHub
Signed-off-by: johnwanggithub <john83.wang@gmail.com>

Change-Id: I580ccaab3f4caf42458862e2c9c8bb2f207cc0da
update GitHubDemo.java & add DemoMain.java

Signed-off-by: johnwanggithub <john83.wang@gmail.com>
Merge branch 'master' of git@github.com:johnwanggithub/GitHubDemo.git