Add docs folder for hosting documentation pages on github.

[StefH]

No description provided.

[codecov]

Codecov Report

Merging #221 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #221   +/-   ##
=======================================
  Coverage   96.61%   96.61%           
=======================================
  Files          41       41           
  Lines        6623     6623           
=======================================
  Hits         6399     6399           
  Misses        224      224

Impacted Files	Coverage Δ
...em.Linq.Dynamic.Core/DynamicQueryableExtensions.cs	100% <0%> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4767cff...4f8f3e4. Read the comment docs.