Update READMEs

[lpatino10]

Fixes #899

This PR updates the main README as well as the individual service READMEs to make any changes in the examples for the v5.0 release, as well as to make formatting consistent throughout.

[codecov-io]

Codecov Report

Merging #902 into develop will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             develop     #902   +/-   ##
==========================================
  Coverage      66.05%   66.05%           
  Complexity      2610     2610           
==========================================
  Files            544      544           
  Lines          14004    14004           
  Branches         817      817           
==========================================
  Hits            9250     9250           
  Misses          4340     4340           
  Partials         414      414

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[germanattanasio]

This looks but we need to update the .bumpconfig file to make sure the places where the version was not updated will get updated on our next release

[lpatino10]

The one place that won't get captured by bumpversion is the SNAPSHOT version in the main README. Unfortunately, after experimenting a bit, I can't find an easy way to add that to our bumpversion configuration file, so we might just have to manually change that when we release.