docs(rtd): update windows instructions

[wallw-teal]

Updates our Windows development documentation by moving it to the RTD docs and updating it per ngageoint/opensphere-build-resolver#46.

[justin-bits]

1. git config --global core.autocrlf input needs to be included in the documentation too. Without this, the build fails with 277k+ errors Expected linebreaks to be 'LF' but found 'CRLF' linebreak-style.
2. I'm not seeing commitizen install mentioned, should that be here too?

[justin-bits]

Suggested change

	At the time of this writing, ``yarn`` has a bug with the ``script-shell`` config. A fix has already been committed and should make their next non-patch release. After that you can use ``yarn run build`` or just ``yarn build`` if you prefer.
	At the time of this writing, ``yarn`` has a [bug](https://github.com/yarnpkg/yarn/issues/5699) with the ``script-shell`` config. A fix has already been committed and should make their next non-patch release. After that you can use ``yarn run build`` or just ``yarn build`` if you prefer.

[wallw-teal]

1. I'm able to build just fine with the git defaults. Do yours differ from this list?

$ git config --list
core.symlinks=false
core.autocrlf=true
core.fscache=true
color.diff=auto
color.status=auto
color.branch=auto
color.interactive=true
help.format=html
rebase.autosquash=true
http.sslcainfo=C:/Program Files/Git/mingw64/ssl/certs/ca-bundle.crt
http.sslbackend=openssl
diff.astextplain.textconv=astextplain
filter.lfs.clean=git-lfs clean -- %f
filter.lfs.smudge=git-lfs smudge -- %f
filter.lfs.process=git-lfs filter-process
filter.lfs.required=true
credential.helper=manager

2. That is not related to getting the build running in Windows and is covered elsewhere.

[justin-bits]

1. Did you do a fresh clone of the repositories? The line endings are wrong without that setting. I started with a fresh install of git too, so I had the default config when I originally encountered the errors during build.
   core.autocrlf=true, clone opensphere-yarn-workspace, clone opensphere, yarn install, npm run lint:js
   

core.autocrlf=input, clone opensphere-yarn-workspace, clone opensphere, yarn install, npm run lint:js

(no errors)

2. Agree.

[wallw-teal]

Yes, it was a fresh clone. I did do the original clone in cygwin though.

Edit: That's the difference. Cygwin, being a full POSIX environment, uses linux-style line endings. I'll add a .gitattributes file forcing LF for text files and a note about the core.autocrlf option in the docs.