Misc. minor fixes mostly related to formatting issues
Added the suggestions made by the great @WouterJ
Fixed the formating of one table (it now uses proper headers)
Fixed some minor formatting issues related to lists
Fixed the formatting of one table headers
Removed a tip inside a sidebar

Adding a tip inside a short sidebar isn't very normal. Moreover
it doesn't look right on the website.
Fixed the indentation of one code block
Fixed more table headers formatting
Fixed the indentation of a bulleted list
Added some links to API methods
Fixed the formatting of several lists to avoid problems when
rendering the documentation on the website
Fixed a very minor indentation issue
Replaced a sidebar with a tip directive
Splitted one tip directive into two smaller tips
Fixed a minor indenttation issue
Reverted the changes in the numbered lists

The original problem was solved with a proper indentation of the
contents, so it's not necessary to change the way the item numbers
are defined.
minor #3899 [RFR] Misc. minor fixes mostly related to formatting issues (javiereguiluz)

This PR was merged into the 2.3 branch.

Discussion
----------

[RFR] Misc. minor fixes mostly related to formatting issues

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.3+
| Fixed tickets | -

Commits
-------

2442839 Reverted the changes in the numbered lists
d38f00e Fixed a minor indenttation issue
03b83ba Splitted one tip directive into two smaller tips
b223417 Replaced a sidebar with a tip directive
e871a32 Fixed a very minor indentation issue
3b557a0 Fixed the formatting of several lists to avoid problems when rendering the documentation on the website
2deb5d7 Added some links to API methods
6625ff2 Fixed the indentation of a bulleted list
81fe666 Fixed more table headers formatting
314c131 Fixed the indentation of one code block
9a71577 Removed a tip inside a sidebar
4641c66 Fixed the formatting of one table headers
0554cae Fixed some minor formatting issues related to lists
dee3180 Fixed the formating of one table (it now uses proper headers)
00b3d26 Added the suggestions made by the great @WouterJ
79bf0a1 Misc. minor fixes mostly related to formatting issues