fix(docs): update docs and resolve build errors

[lp-ae]

Updates the pipeline build documentation to better reflect naming migration to SDP and default Lakeflow Framework bundle deployment location. Along the way discovered doco building was failing for both HTML and md versions, so I've fixed those too (fixes #36).

There are a couple of notable points that probably need further thought;

• Docutils version pinning resolves a sphinx-tabs backrefs build error as described in Issue#206. This is resolved by PR#207 and released in v3.5.0 however there is an incompatibility resolving dependencies with sphinx-toolbox v4.1.2 which depends on sphinx-tabs>=1.2.1,<3.4.7. Ideally all reqs should have their versions pinned for consistency, however that's outside the scope of this PR.
• Additional config params bring the config up to date with sphinx-markdown-builder>=0.6.9 accounting for breaking changes introduced by PR#40
• The rest are resolutions to formatting issues throwing errors, however there are still a significant number of warnings (270+) that should probably be resolved. Notable among them are toctree orphans and duplicate labels.

The issues discovered also pretty strongly indicate that package pinning is a good idea, this will likely break again in future. Might also be a good idea to build the docs as part of a pass-required CI activity on PRs if the intention is to keep doco aligned with features.

[haillew]

LGTM - thanks Lincoln