Specify program name in project template CLI

[micahjsmith]

Turns out you need prog_name, not name: https://click.palletsprojects.com/en/7.x/api/?highlight=prog_name#click.BaseCommand.main

Fixes #71

[codecov-commenter]

Codecov Report

Merging #74 (7c124a1) into master (6710d88) will decrease coverage by 0.22%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #74      +/-   ##
==========================================
- Coverage   84.87%   84.65%   -0.23%     
==========================================
  Files          47       47              
  Lines        2751     2809      +58     
  Branches      280      291      +11     
==========================================
+ Hits         2335     2378      +43     
- Misses        327      339      +12     
- Partials       89       92       +3     

Impacted Files	Coverage Δ
ballet/compat.py	27.27% <0.00%> (-42.43%)	⬇️
ballet/project.py	90.24% <0.00%> (+3.16%)	⬆️

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