Remove ''' from example Python code

[clayote]

I think these were leftover from when the docs were in Markdown? As-is, they mean the code samples don't run properly.

[codecov]

Codecov Report

Merging #125 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #125   +/-   ##
=======================================
  Coverage   73.87%   73.87%           
=======================================
  Files           3        3           
  Lines         888      888           
=======================================
  Hits          656      656           
  Misses        232      232

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[halcy]

The commenting-out is there on purpose, to make sure somebody does not just copy-paste the code without any consideration and creates a script that registers a new app every time it runs (those stay in the database forever, which is Not Great). For the login, I'd be fine with taking them out, but for app registration, I'm strongly for leaving them in there.