Update docs on how to build and run docserver.

No-Try: true
Docs-Preview: https://skia.org/?cl=90943
Bug: skia:7444
Change-Id: I603e629a2a2a799c9f2ea699cbfb6f6533da327b
Reviewed-on: https://skia-review.googlesource.com/90943
Commit-Queue: Joe Gregorio <jcgregorio@google.com>
Reviewed-by: Ben Wagner <benjaminwagner@google.com>
1 file changed