Merge pull request #5 from who-ocr/master

Merge changes to go live on gh-pages
Merge branch 'gh-pages' of github.com:who-ocr/ebola-portal into gh-pages
change header link
adjusted top table column name
capitalization
chart update, current assessment update to sept23
Merge branch 'gh-pages' of github.com:who-ocr/ebola-portal
add new roadmap document
Merge branch 'gh-pages' of github.com:who-ocr/ebola-portal
chart update
Merge branch 'gh-pages' of github.com:who-ocr/ebola-portal
text update
Merge branch 'gh-pages' of github.com:who-ocr/ebola-portal
update week number
Merge branch 'gh-pages' of github.com:who-ocr/ebola-portal