Adding link to the OM client

[chayim]

• docs cleanup, adding om link
• adding link to om client

Pull Request check-list

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• Does $ tox pass with this change (including linting)?
• Do the CI tests pass with this change (enable it first in your forked repo and wait for the github action build to finish)?
• Is the new or changed code fully tested?
• Is a documentation update included (if this change modifies existing APIs, or introduces new ones)?
• Is there an example added to the examples folder (if applicable)?
• Was the change added to CHANGES file?

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Description of change

Please provide a description of the change here.

[codecov-commenter]

Codecov Report

Merging #2262 (766839d) into master (e6cd4fd) will decrease coverage by 0.37%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2262      +/-   ##
==========================================
- Coverage   91.85%   91.47%   -0.38%     
==========================================
  Files         108      108              
  Lines       27783    26908     -875     
==========================================
- Hits        25521    24615     -906     
- Misses       2262     2293      +31     

Impacted Files	Coverage Δ
tests/test_ssl.py	43.93% <0.00%> (-5.71%)	⬇️
redis/__init__.py	76.19% <0.00%> (-4.77%)	⬇️
tests/test_function.py	24.69% <0.00%> (-4.38%)	⬇️
redis/retry.py	95.83% <0.00%> (-4.17%)	⬇️
redis/asyncio/retry.py	92.85% <0.00%> (-3.58%)	⬇️
tests/test_graph_utils/test_edge.py	93.93% <0.00%> (-3.36%)	⬇️
tests/test_graph.py	88.38% <0.00%> (-2.31%)	⬇️
tests/test_graph_utils/test_path.py	96.77% <0.00%> (-1.74%)	⬇️
tests/test_commands.py	88.60% <0.00%> (-1.21%)	⬇️
redis/backoff.py	58.69% <0.00%> (-0.88%)	⬇️
... and 51 more

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