Hint for python typing that pastel_factor is a float

[coderesting]

pastel_factor is currently assumed to be an integer by the type checker.
Changing "0" to "0." fixes this.

[jack89roberts]

Thanks @coderesting - I'll plan to merge this later this week.

[jack89roberts]

Actually black doesn't like 0., could you change them to 0.0 (otherwise I can when I get around to this)?

[codecov]

Codecov Report

Merging #30 (cf0f897) into main (9f9f15e) will not change coverage.
The diff coverage is 100.00%.

❗ Current head cf0f897 differs from pull request most recent head 00e6161. Consider uploading reports for the commit 00e6161 to get more accurate results

@@           Coverage Diff           @@
##             main      #30   +/-   ##
=======================================
  Coverage   85.06%   85.06%           
=======================================
  Files           6        6           
  Lines         375      375           
=======================================
  Hits          319      319           
  Misses         56       56           

Files Changed	Coverage Δ
distinctipy/__init__.py	100.00% <100.00%> (ø)
distinctipy/distinctipy.py	88.60% <100.00%> (ø)