Improvements to bidict view methods and docs.

[jab]

moved to #229

[gitpod-io]

[codecov]

Codecov Report

Merging #228 (38a3c51) into main (69b83ff) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main      #228   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           16        15    -1     
  Lines          607       604    -3     
  Branches        87        88    +1     
=========================================
- Hits           607       604    -3     

Impacted Files	Coverage Δ
bidict/_abc.py	100.00% <ø> (ø)
bidict/_base.py	100.00% <100.00%> (ø)
bidict/_bidict.py	100.00% <100.00%> (ø)
bidict/_frozenbidict.py	100.00% <100.00%> (ø)
bidict/_orderedbase.py	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 69b83ff...38a3c51. Read the comment docs.