Document generation of the website

[ChristianKuehnel]

I did not find any documentation on how to generate the html code of the website from the monorepo. This would be useful to have to test changes locally.

Once we have that, add this to the documentation tutorials so people find it:

• https://llvm.org/docs/MarkdownQuickstartTemplate.html
• https://llvm.org/docs/SphinxQuickstartTemplate.html

[ChristianKuehnel]

some discussion on the mailing list recently, check that for details

[ChristianKuehnel]

Dug up the commands as I just tested my own documentation change, maybe that helps:

# tools needed in addition to cmake, ninja, build-essentials, ...
sudo apt install -y sphinx-doc python-recommonmark-doc
mkdir build
cd build
cmake -G Ninja -DLLVM_ENABLE_SPHINX=On ../llvm
ninja docs-llvm-html

[tstellar]

I wrote a script here: https://reviews.llvm.org/D95284

[ChristianKuehnel]

I added a pure documentation patch for manually creating the documentation locally:
https://reviews.llvm.org/D107460