[Docs] jsx-no-target-blank: adjust options description

[gebsh]

Fixes #3123.

Additionally:

• I added the missing warnOnSpreadAttributes option to the code block with a rule configuration.
• Rearranged items on the enumeration list so that they match the order of options in the mentioned code block.
• Adjusted formatting of those items so that all of them have the same style. (I chose the colon over the hyphen, as that's how most other rules have their options described.)

[codecov-commenter]

Codecov Report

Merging #3124 (e672316) into master (7b3d728) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3124   +/-   ##
=======================================
  Coverage   97.46%   97.46%           
=======================================
  Files         119      119           
  Lines        8076     8076           
  Branches     2876     2876           
=======================================
  Hits         7871     7871           
  Misses        205      205           

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