Developer documentation update for changes to operator mapping

[delliott90]

No description provided.

[codecov]

Codecov Report

Merging #846 (137d329) into develop (0cdbc71) will decrease coverage by 0.00%.
The diff coverage is 60.00%.

@@             Coverage Diff             @@
##           develop     #846      +/-   ##
===========================================
- Coverage    63.56%   63.56%   -0.01%     
===========================================
  Files          466      468       +2     
  Lines        41647    41667      +20     
===========================================
+ Hits         26472    26484      +12     
- Misses       15175    15183       +8     

Impacted Files	Coverage Δ
stix_shifter_utils/utils/file_helper.py	97.61% <ø> (ø)
...dules/async_dummy/stix_translation/transformers.py	60.00% <60.00%> (ø)
...synchronous_dummy/stix_translation/transformers.py	60.00% <60.00%> (ø)

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