Fix the way table names are parsed

[sdispater]

Fixes #74

[codecov-io]

Codecov Report

Merging #76 into master will decrease coverage by 0.03%.
The diff coverage is 90.9%.

@@            Coverage Diff             @@
##           master      #76      +/-   ##
==========================================
- Coverage   91.21%   91.18%   -0.04%     
==========================================
  Files          10       10              
  Lines        2174     2200      +26     
==========================================
+ Hits         1983     2006      +23     
- Misses        191      194       +3

Impacted Files	Coverage Δ
tomlkit/parser.py	95.86% <90.9%> (-0.3%)	⬇️

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