docs: added missing documentation for get_blocked_servers

[Lucino772]

Description

This PR just adds a section in the documentation for the method get_blocked_server.

Type of change

• 📃 Documentation (Documentation only changes)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation

[codecov]

Codecov Report

Base: 67.92% // Head: 67.92% // No change to project coverage 👍

Coverage data is based on head (1e659bc) compared to base (e0fb748).
Patch has no changes to coverable lines.

❗ Current head 1e659bc differs from pull request most recent head 698a7cf. Consider uploading reports for the commit 698a7cf to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #53   +/-   ##
=======================================
  Coverage   67.92%   67.92%           
=======================================
  Files          27       27           
  Lines         901      901           
  Branches       83       83           
=======================================
  Hits          612      612           
  Misses        269      269           
  Partials       20       20           

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