TINKERPOP-3233 Added escaped characters to docs

[GumpacG]

https://issues.apache.org/jira/browse/TINKERPOP-3233

Added escaped characters to docs.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 76.23%. Comparing base (cfd6889) to head (0fdf037).
⚠️ Report is 1009 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3383      +/-   ##
============================================
- Coverage     77.87%   76.23%   -1.64%     
+ Complexity    13578    13314     -264     
============================================
  Files          1015     1011       -4     
  Lines         59308    59831     +523     
  Branches       6835     7009     +174     
============================================
- Hits          46184    45614     -570     
- Misses        10817    11530     +713     
- Partials       2307     2687     +380     

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[Cole-Greer]

VOTE +1