Adding spellcheck to CI, and fixing docs along the way

[chayim]

No description provided.

[codecov]

Codecov Report

Merging #933 (13fff15) into master (2dd4ef1) will increase coverage by 0.46%.
The diff coverage is 96.55%.

❗ Current head 13fff15 differs from pull request most recent head 635f727. Consider uploading reports for the commit 635f727 to get more accurate results

@@            Coverage Diff             @@
##           master     #933      +/-   ##
==========================================
+ Coverage   81.30%   81.77%   +0.46%     
==========================================
  Files          54       54              
  Lines        8201     8214      +13     
==========================================
+ Hits         6668     6717      +49     
+ Misses       1533     1497      -36     

Impacted Files	Coverage Δ
src/execution/DAG/dag_builder.c	100.00% <ø> (ø)
src/execution/DAG/dag_op.c	100.00% <ø> (ø)
src/execution/parsing/script_commands_parser.c	78.57% <ø> (-0.12%)	⬇️
.../serialization/RDB/decoder/previous/v2/decode_v2.c	46.37% <50.00%> (+0.45%)	⬆️
tests/module/LLAPI.c	75.89% <80.00%> (-0.02%)	⬇️
src/execution/background_workers.c	94.63% <95.23%> (+0.01%)	⬆️
src/redisai.c	89.27% <97.14%> (+1.47%)	⬆️
src/backends/backends.c	78.57% <100.00%> (+0.53%)	⬆️
...backends/libtorch_c/torch_extensions/torch_redis.h	90.90% <100.00%> (ø)
src/backends/tensorflow.c	72.43% <100.00%> (+0.06%)	⬆️
... and 18 more

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[gkorland]

@chayim

Misspelled words:
<htmlcontent> docs/configuration.md: html>body>p
--------------------------------------------------------------------------------
RedisAI
--------------------------------------------------------------------------------

[chayim]

@DvirDukhan Sorry, I had to add RedisAI to the wordlist. Mind restamping?

[DvirDukhan]

Can you add early return for tests on branches with suffix "spelling" (same as suffix "docs")

[chayim]

Done

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