Clean Up PEP8 Issues

[DerekMelchin]

Expected Behavior

The Python docs consistently use the PEP8 verison of LEAN.

Actual Behavior

A lot of code snippets and text throughout the docs still use the old CamelCase version

Checklist

• I have completely filled out this template
• I have confirmed that this issue exists on the current master branch
• I have confirmed that this is not a duplicate issue by searching issues

[DerekMelchin]

Example found:

• The candlestick pattern reference pages use self.CandlestickPatterns

[LouisSzeto]

Example found:

• The candlestick pattern reference pages use self.CandlestickPatterns

fixed in commit f568e3c