No escape in code

[math2001]

Hello!

Hey, didn't know about this UnitTest plugin. Definitely gonna look into it for my future plugins! Thanks! 😄

Anyway, these small changes solve this issue #64.

Have a look at the commit, they basically explain what I've done. The summary:

- I added a few tests
- They all pass

Thanks for this plugin, saves me so much time. 👍 Matt

PS: I use gitmoji in my commit messages. They basically talk for them self, but if you want to have a look.

[coveralls]

Coverage increased (+0.5%) to 89.7% when pulling 54b972b0df362c1d582406f97adc4d8b1dcbe7f7 on math2001:no-escape-in-code into 83b2555ca15fc0a62fa4785dd96829e516468f73 on naokazuterada:master.

[coveralls]

Coverage increased (+0.5%) to 89.7% when pulling 54b972b0df362c1d582406f97adc4d8b1dcbe7f7 on math2001:no-escape-in-code into 83b2555ca15fc0a62fa4785dd96829e516468f73 on naokazuterada:master.

[codecov[bot]]

Codecov Report

Merging #101 into master will increase coverage by 0.46%. The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #101      +/-   ##
==========================================
+ Coverage   89.23%   89.69%   +0.46%     
==========================================
  Files           1        1              
  Lines         223      233      +10     
==========================================
+ Hits          199      209      +10     
  Misses         24       24

Impacted Files	Coverage Δ
MarkdownTOC.py	89.69% <100%> (+0.46%)	:arrow_up:

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[naokazuterada]

@math2001 Thank you sooo much for your PR! It was great!! I've merged it with some additional commits.