Glossary Incomplete

Need to build [Glossary](https://conda-forge.org/docs/misc/00_intro.html#glossary) terms from scratch. Only very few terms are listed without proper definition or links. This could be a separate task but an important one.

IMHO [Glossary](https://conda-forge.org/docs/misc/00_intro.html#glossary) should be a separate entry in sidebar menu, and not under [Miscellaneous.](https://conda-forge.org/docs/misc/00_intro.html#) Also [TODO](https://conda-forge.org/docs/misc/00_intro.html#todo-list) list doesn't make sense (may be I'm missing something).