First pre-release of Lagos e-Research Hackfest site.

This is the first pre-releae of the Lagos Hackfest. This is still work in progress and some links are missing :

- _site/about/index.html
  *  External link http://localhost:4000//ci-cd failed: 404 No error
  *  External link http://localhost:4000//dev-env failed: 404 No error
  *  External link http://localhost:4000//event-prep/ failed: 404 No error
  *  External link https://github.com/AAROC/hackfest-site/fork failed: 404 No error
- _site/before-checklist/index.html
  *  External link http://localhost:4000//idf failed: 404 No error
- _site/checklist/index.html
  *  External link http://localhost:4000//before-prep/ failed: 404 No error
  *  External link http://localhost:4000//prerequisite/ failed: 404 No error
- _site/team/index.html
  *  image http://localhost:4000//images/bruce-becker.jpg does not have an alt attribute (line 284)
  *  image http://localhost:4000//images/original.png does not have an alt attribute (line 212)
  *  image http://localhost:4000//images/original.png does not have an alt attribute (line 224)
  *  image http://localhost:4000//images/original.png does not have an alt attribute (line 236)
  *  image http://localhost:4000//images/original.png does not have an alt attribute (line 258)
  *  image http://localhost:4000//images/original.png does not have an alt attribute (line 271)
htmlproofer 3.3.1 | Error:  HTML-Proofer found 13 failures!

Issues will be opened against these sites and tagged with "page-missing"

For the next pre-release (v0.0.2-lagos) the links should be added, and incomplete page issues opened and tagged "incomplete page"

For any further discussion, see the topic on the forum