Misc documentation rehaul

Mainly:

• Remove duplicate instructions
• Ask users to remove all CRDs before installing
• Encourage writing unit tests
• Notes about resource limits and recommendations
• Remove documented values leading to nowhere

requested review from @bgarrido

resolved all threads

added 1 commit

• b246b78f - Apply 1 suggestion(s) to 1 file(s)

Compare with previous version

added 14 commits

• b246b78f...416ae821 - 6 commits from branch master
• a17336a6 - Add some notes about configuring Prometheus' memory limits
• 8fad2e6f - Remove documentation about non-existent key path
• e6a761ef - Avoid duplicating installation instructions
• 296b4de5 - Encourage writing unit tests
• 735d22c2 - Remove duplicated information
• 3eb9c2e8 - Ask to delete existing CRDs before installing the chart
• f7f45a0d - Fix typos
• 2cb046a7 - Apply 1 suggestion(s) to 1 file(s)

Compare with previous version

approved this merge request

added 7 commits

• 1a53fbbe - Add some notes about configuring Prometheus' memory limits
• 70f71691 - Remove documentation about non-existent key path
• 9bf3957b - Avoid duplicating installation instructions
• 9626b453 - Encourage writing unit tests
• e00dff4f - Remove duplicated information
• 330d14c1 - Ask to delete existing CRDs before installing the chart
• 8b75fadf - Fix typos

Compare with previous version

enabled an automatic merge when all merge checks for 8b75fadf pass

merged