How to update the gh-pages at http://isocpp.github.io/CppCoreGuidelines/

1. git checkout master
2. Update date in CppCoreGuidelines.md (and commit & push if updated)
3. git checkout gh-pages
4. git checkout master -- CppCoreGuidelines.md

5. Replace all instances of {{ with {{ "{{" }}
   This escapes the Liquid Template tag which has format {{ liquid }} 
   If you're lucky enough to use vi, your command is: %s/{{/{{ "{{" }}/g
   Remember to save the file!

6. git commit -a -m "message"
7. git push
8. Refresh the http://isocpp.github.io/CppCoreGuidelines/ to verify that the
build succeeded. If not, check your email! If the page fails to build, you'll 
get a mail explaining why. 

Note the index on the gh-pages is updated manually.