Implement output reST

[raimon49]

• Implement function
• Testing
• Add a document
• Bump version
• Release to PyPI

[codecov]

Codecov Report

Merging #4 into master will increase coverage by 0.12%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master       #4      +/-   ##
==========================================
+ Coverage   95.91%   96.03%   +0.12%     
==========================================
  Files           1        1              
  Lines          98      101       +3     
==========================================
+ Hits           94       97       +3     
  Misses          4        4

Impacted Files	Coverage Δ
piplicenses.py	96.03% <100%> (+0.12%)	⬆️

---

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 5af890f...fceaaa5. Read the comment docs.