docs: Remove

Docs site is moved to https://github.com/gohugoio/hugoDocs

Will be re-added here as a Git submodule.

docs/content/commands/hugo_gen_doc.md

@@ -1,47 +0,0 @@
----
-date: 2017-05-23T20:59:46+03:00
-title: "hugo gen doc"
-slug: hugo_gen_doc
-url: /commands/hugo_gen_doc/
----
-## hugo gen doc
-
-Generate Markdown documentation for the Hugo CLI.
-
-### Synopsis
-
-
-Generate Markdown documentation for the Hugo CLI.
-
-This command is, mostly, used to create up-to-date documentation
-of Hugo's command-line interface for http://gohugo.io/.
-
-It creates one Markdown file per command with front matter suitable
-for rendering in Hugo.
-
-```
-hugo gen doc [flags]
-```
-
-### Options
-
-```
-      --dir string   the directory to write the doc. (default "/tmp/hugodoc/")
-  -h, --help         help for doc
-```
-
-### Options inherited from parent commands
-
-```
-      --config string    config file (default is path/config.yaml|json|toml)
-      --log              enable Logging
-      --logFile string   log File path (if set, logging enabled automatically)
-      --quiet            build in quiet mode
-  -v, --verbose          verbose output
-      --verboseLog       verbose logging
-```
-
-### SEE ALSO
-* [hugo gen](/commands/hugo_gen/)	 - A collection of several useful generators.
-
-###### Auto generated by spf13/cobra on 23-May-2017