Merge pull request #28 from alecthegeek/build

Reviewed and made suggestions
Added opengraph meta-data to index.
Merge branch 'build' of github.com:pjf/pjf.github.io into build

* 'build' of github.com:pjf/pjf.github.io:
  Reviewed and made suggestions
Shorter odescription on index.html
More index tweaks. Meh.
Further review and updates

1) Add more links for 3rd party services
2) Moved stuff around to try and improve flow of article
3) Tried to simplify some language (e.f. remove "utilisation")
4) Added some formating