feat(readme): add section for report troubleshooting

[dvoegeli]

resolves #114

What Changed

• add section for report troubleshooting
  • completion time
  • stuck in queue
  • manually accepting proposed mappings
• fix markdown lint issues

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[codecov]

Codecov Report

Merging #119 (a174333) into master (1c9ff5d) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #119   +/-   ##
=======================================
  Coverage   95.58%   95.58%           
=======================================
  Files           8        8           
  Lines         748      748           
=======================================
  Hits          715      715           
  Misses         33       33           

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[mehaase]

I merged in the master branch so that this PR is mergeable. There were some conflicts with @emmanvg's edits to the README, so I kept the updated developer setup instructions from @emmanvg and then incorporate the rest of the changes from @dvoegeli.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[emmanvg]

Looks good to me.