Remove "Release" from the GitHub Release title

[jtpio]

This is more of a personal preference, but maybe we could drop the "Release" prefix in the GitHub Release title?

[codecov-commenter]

Codecov Report

Merging #130 (f9dfc6e) into master (f55a540) will decrease coverage by 0.24%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #130      +/-   ##
==========================================
- Coverage   85.52%   85.27%   -0.25%     
==========================================
  Files          17       17              
  Lines        2093     2058      -35     
  Branches      252      252              
==========================================
- Hits         1790     1755      -35     
  Misses        212      212              
  Partials       91       91              

Impacted Files	Coverage Δ
jupyter_releaser/lib.py	83.66% <ø> (ø)
jupyter_releaser/cli.py	89.87% <0.00%> (-0.79%)	⬇️
jupyter_releaser/tests/conftest.py	98.37% <0.00%> (-0.14%)	⬇️
jupyter_releaser/tests/util.py	99.05% <0.00%> (-0.01%)	⬇️
jupyter_releaser/tests/test_cli.py	99.16% <0.00%> (-0.01%)	⬇️

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[blink1073]

👍🏼