Improve docs on colliding bunches

[graduta]

I DON'T have JIRA ticket

• explain what this PR does
• [N/A] if it is a new feature, explain how you plan to use it
• [N/A] tests are added
• documentation was updated or added

Notable changes for users:

• N/A

Notable changes for developers:

• documentation on source of colliding bunches and format of schema name

Changes made to the database:
-N/A

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 45.66%. Comparing base (1fd9751) to head (5dd63d8).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2015   +/-   ##
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  Coverage   45.66%   45.66%           
=======================================
  Files        1021     1021           
  Lines       17023    17023           
  Branches     3082     3082           
=======================================
  Hits         7773     7773           
  Misses       9250     9250           

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