Added a basic contents table links

[davidyell]

The readme is kinda big, so this pull request aims to mitigate that by adding a contents 'table' of links, to get to specific parts quicker.

[dereuromark]

👎
I actually just proposed a few days ago to keep readme lean and move the docs mainly to a subdir /docs as recommended in general.
Then this becomes not necessary anymore, or could be part of the /docs README one.

[davidyell]

I don't see why we can't merge this then in the meantime. As when the pull request for the next update comes through, we can overwrite this change.

[codecov]

Codecov Report

Merging #235 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #235   +/-   ##
=========================================
  Coverage     96.46%   96.46%           
  Complexity      153      153           
=========================================
  Files            12       12           
  Lines           368      368           
=========================================
  Hits            355      355           
  Misses           13       13

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[dereuromark]

Why not moving it already now?
Adding this just invites the readme to get further exploded by too much content.

[davidyell]

Sure, go for it 👍

[dereuromark]

Do you want to move them to /docs/README.md ?
Keeping only the outline and basics in the readme then?

[davidyell]

I don't see any value in such a small change. If we are going to use a /docs folder, there should be documentation for each logical section of the plugin, with links in the main repo readme.