Fix docstring missing backslash escape

[tefra]

No description provided.

[codecov]

Codecov Report

Merging #518 (1ade9a6) into master (f966d11) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #518   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           87        87           
  Lines         7514      7518    +4     
  Branches      1312      1314    +2     
=========================================
+ Hits          7514      7518    +4     

Impacted Files	Coverage Δ
xsdata/formats/dataclass/filters.py	100.00% <100.00%> (ø)
...s/dataclass/templates/docstrings.accessible.jinja2	100.00% <100.00%> (ø)

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication