Reorganize the sidebar in DrizzlePac readthedocs

[stscijgbot-hstdp]

Issue HLA-965 was created on JIRA by Jennifer Mack:

https://drizzlepac.readthedocs.io/en/latest/

Using a 'tree' structure with nested items in the sidebar would make navigation more user friendly.

For example, one could click on:

• 'Astrodrizzle' to list all of the separate steps like Static Mask, Sky subtraction, median, etc.
• 'Alignment tools' could include tweakreg, tweakwcs, tweakback, etc.
• Coordinate transformations, e.g. pixtopix, pixtosky, skytopix
• WCS tools could include functions to manage WCS and headerlets
• Advanced Products would have SVM and MVM processing and products

There may be a better way to organize this, so feel free to adapt based on what makes the most sense.

[stscijgbot-hstdp]

Comment by Jennifer Mack on JIRA:

Warren Hack Michele De La Pena

I filed this new ticket but not sure if it's in the right place. 

It's possible this work has been done, but I see this related ticket https://jira.stsci.edu/browse/HLA-953 |HLA-953]:   Fix RTD build of the Drizzlepac documentation

which might mean I'm looking at an old version of readthedocs

 

 

[stscijgbot-hstdp]

Comment by Warren Hack on JIRA:

The updates implemented under HLA-953 only included 1 simple change to the organization of the pages listed on the sidebar, since the intent of that ticket was to get the RTD build to succeed once again. 

This ticket will serve nicely to organize the remainder of the changes which should be done to the Drizzlepac RTD pages. 

[stscijgbot-hstdp]

Comment by Steve Goldman on JIRA:

duplicated by HLA-1175 and closed by #⁠1717