module (#802)
* User guide: adding instructions on how to use and update docsy as hugo module
* Add section on how to work around a known bug in Go's module management
* Docu for conversion of existing site: improvements and fixes
* User guide: reflect latest changes in hugo module implementation
* Add warning about order of sections [language] and [module] in config.toml
* Update docu to reflect changes made in e444964a013.
* Update _index.md
* Update _index.md
* Update installation-prerequisites.md
* Update _index.md
* Update example-site-as-template.md
* Update start-from-scratch.md
* Update start-from-scratch.md
* Update and rename quickstart-clone-git-repo.md to docsy-as-submodule
* Update _index.md
* Update start-from-scratch.md
* Rename docsy-as-submodule to other-options
* Rename other-options to other-options.md
* Create basic-configuration.md
* Update example-site-as-template.md
* Update start-from-scratch.md
* Update other-options.md
* Update basic-configuration.md
* Update quickstart-docker.md
* Update _index.md
* Update Updating-hugo-module.md
* Update _index.md
* Update Updating-submodules.md
* Update _index.md
* Update Convert-site-to-module.md
* Update Updating-submodules.md
* Update Updating-submodules.md
* Correct links to pre-release version 0.2.0-pre
* Netlify: correcting go version
* Compactify menu
...as left nav is getting very big...
* Fixed broken link to setup guide
* User guide, .gitignore: remove unneeded entry
Co-authored-by: LisaFC <lcarey@google.com>