Chore: Update Play store and F-Droid links in README.md

[GOVINDDIXIT]

Fixes #1349

Checklist:

• I have checked for PMD and check-style issues
• I have read the Contribution & Best practices Guide and my PR follows them.
• My branch is up-to-date with the Upstream development branch.

[codecov]

Codecov Report

Merging #1351 into development will not change coverage.
The diff coverage is n/a.

@@              Coverage Diff               @@
##             development    #1351   +/-   ##
==============================================
  Coverage          24.53%   24.53%           
  Complexity           757      757           
==============================================
  Files                237      237           
  Lines               8629     8629           
  Branches             349      349           
==============================================
  Hits                2117     2117           
  Misses              6429     6429           
  Partials              83       83

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[GOVINDDIXIT]

@iamareebjamal pls review

[iamareebjamal]

Please use lower case tags like chore from now on

[GOVINDDIXIT]

Oops 😅