* Fixing most of remaining bad links
Still left :
#google.rpc.Code in reference/api/mixer/status
And the mixer-config-quota-bookinfo.yaml is missing in
https://github.com/istio/istio/tree/master/samples/apps/bookinfo
* Add html checking and ignore localhost urls
fixed typo in layouts/base found by html checking
* Fix duplicate id defined
Those anchors don’t seem used btw
* Adding back html proofer
got removed accidentally it seems
* Fix the last 2 errors
The directory structure of the input web site now controls directory the layout of the
doc hierarchy. This simplifies authoring documents and enriches the UI we generate.
This also fixes the broken link problem with the GitHub staging sites. Most links work
now.
Our sitemap.xml now contains all that it should, and excludes stuff that it shouldn't contain.