U3 ADA Fixes

[lmock]

• [ ] L4P1 Image of table should actually be an html table https://github.com/bjc-edc-2017-18/bjc-r/blob/gh-pages/cur/programming/3-lists/4-graphing/1-bar-graphs.html

• [x] L4P1 "Click here for more." → change to "reveal a hint" https://github.com/bjc-edc-2017-18/bjc-r/blob/gh-pages/cur/programming/3-lists/4-graphing/1-bar-graphs.html

• [ ] L5P2 The google graph is inaccessible. You will have to restructure the wording on the page so that students open the graph in a new tab. https://github.com/bjc-edc-2017-18/bjc-r/blob/gh-pages/cur/programming/3-lists/5-big-data/2-health-data.html

• [x] L5P2 "Click for a hint" → "reveal a hint" https://github.com/bjc-edc-2017-18/bjc-r/blob/gh-pages/cur/programming/3-lists/5-big-data/2-health-data.html

• [x] L5P3 Table in Q4 missing headings, scope and captions. https://github.com/bjc-edc-2017-18/bjc-r/blob/gh-pages/cur/programming/3-lists/5-big-data/3-self-check.html

[maryfries]

Re: L4P1 Image of table should actually be an html table Would a report of the block's data work here?

I will address this: L5P3 Table in Q4 missing headings, scope and captions.

[maryfries]

L5P3 Table in Q4 - done minus captions

[maryfries]

Hi @lmock Re: "L5P2 The google graph is inaccessible," is the sidenote, "If the interactive graph doesn't work on this page, you can view it on google.com," not sufficient?