Fix external link.
Fix a few typos.
Merge pull request #71 from openxc/fix-typos

Fix a few typos.
Removed verbage about the traces being gzipped.  (They aren't any more.)
Added trace files from Delhi.
Reorganized the traces.
Removed spaces from a file name to allow downloading.
Verbage about gzipped data restored.  (Most of it IS gzipped.)
Trace files rearranged, Delhi file names updated.
Rearranged the trace sections.
Mention correct production website branch in README.
Use jekyll-redirect plugin to handle moved pages automatically.

Fixed #73.
Remove duplicate code in 404 page, can use templates now.
Remove link to unused and missing js file.
Add an HTML linter and link checker for CI.

Also, fix a lot of broken links it found!
Fix title on 404 page.
Add another redirect I missed earlier.
Exclude a bunch of non-site files from generated Jekyll site.
Remove direct link to any particular OTG adapter - just Google it.
Add link to first contribution ideas page in wiki.
mobility challenges added
line space adjusted
Clarify that we support OBD-II on CAN.