Add vendoring and make targets. Require Go 1.8+ and remove mention of
GOPATH (just assume $HOME/go).
Due to time contraints, the contributing tutorial was only slightly
updated to make obvious corrections.
Fixes#3153
- removed comma on line 16 to avoid confusion between clauses
- added period to line 24 for consistency
- clarified "read on" on line 30 to follow style above it while
also verbally writing what the author seems to intend
- removed "You probably know what to do." on line 30 due to wordiness
that could lead to confusion and a drag in reading speed
* Add meta author, description and generator tags
* Add Hugo version beside the logo and in the footer
* Suggest the user to run `go get -u -v` to update dependencies
* Requires Go 1.3+ rather than Go 1.1+
* Improve rendering/formatting in some places
* Add trailing slash to URLs where appropriate
* GitHub redirects all http requests to https, update accordingly
* Add link to https://travis-ci.org/spf13/hugo
* Correct heading levels in docs/content/community/mailing-list.md
* Mention RFC 3339 as the `date` format set by `hugo new`
* Mention that `hugo new` does not add `draft = true` when the user
provides an archetype
* List short examples of TOML and YAML side by side
* Compact the Math template functions into a table
* Put some notes into a blockquote
