add build structure and command including config

[chrisllontop]

Please check if the PR fulfills these requirements

• Followed the Contributing guidelines.
• Tests for the changes have been added (for bug fixes/features) with 100% code coverage.
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

[codecov]

Codecov Report

Base: 100.00% // Head: 100.00% // No change to project coverage 👍

Coverage data is based on head (db8a226) compared to base (b656151).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff            @@
##              main        #1   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            2         6    +4     
  Lines           64       141   +77     
  Branches        17        27   +10     
=========================================
+ Hits            64       141   +77     

Impacted Files	Coverage Δ
src/config.ts	100.00% <100.00%> (ø)
src/docula.ts	100.00% <100.00%> (ø)
src/eleventy.ts	100.00% <100.00%> (ø)
src/eleventy/filters.ts	100.00% <100.00%> (ø)
src/tools.ts	100.00% <100.00%> (ø)

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