[ENHANCEMENT] simplify PR template

[sandokandias]

- What I did
Removed the question How I did it because the change files explain itself

- How to verify it
Open a new PR after merge this branch

- Description for the changelog

Simplify PR template

[codecov-commenter]

Codecov Report

Merging #237 into master will decrease coverage by 0.12%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #237      +/-   ##
==========================================
- Coverage   66.17%   66.05%   -0.13%     
==========================================
  Files          72       72              
  Lines        2800     2737      -63     
==========================================
- Hits         1853     1808      -45     
+ Misses        679      671       -8     
+ Partials      268      258      -10     

Impacted Files	Coverage Δ
pkg/cmd/set_credential.go	50.79% <0.00%> (-6.35%)	⬇️
pkg/cmd/create_formula.go	54.83% <0.00%> (-0.89%)	⬇️

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