A few tweaks to the docs

[lantiga]

No description provided.

[codecov]

Codecov Report

Merging #346 into master will not change coverage.
The diff coverage is 64.49%.

@@           Coverage Diff           @@
##           master     #346   +/-   ##
=======================================
  Coverage   72.50%   72.50%           
=======================================
  Files          21       21           
  Lines        4288     4288           
=======================================
  Hits         3109     3109           
  Misses       1179     1179           

Impacted Files	Coverage Δ
src/background_workers.c	83.50% <ø> (ø)
src/err.c	90.00% <ø> (ø)
src/model.c	69.25% <ø> (ø)
src/redisai.c	78.22% <ø> (ø)
src/run_info.c	84.05% <ø> (ø)
src/script.c	63.41% <46.42%> (ø)
src/model_script_run_session.c	92.00% <66.66%> (ø)
src/backends.c	62.96% <67.34%> (ø)
src/stats.c	85.33% <85.71%> (ø)
src/dag.c	88.13% <100.00%> (ø)
... and 12 more

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[itamarhaber]

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