Update README.md

[mo8it]

Mentioned NaturallyUnitful.jl

[codecov-commenter]

Codecov Report

Merging #483 (1183191) into master (492c475) will decrease coverage by 7.87%.
The diff coverage is n/a.

❗ Current head 1183191 differs from pull request most recent head b3f0f9e. Consider uploading reports for the commit b3f0f9e to get more accurate results

@@            Coverage Diff             @@
##           master     #483      +/-   ##
==========================================
- Coverage   83.77%   75.90%   -7.88%     
==========================================
  Files          16       16              
  Lines        1344     1129     -215     
==========================================
- Hits         1126      857     -269     
- Misses        218      272      +54     

Impacted Files	Coverage Δ
src/types.jl	65.95% <0.00%> (-23.84%)	⬇️
src/utils.jl	74.41% <0.00%> (-20.94%)	⬇️
src/display.jl	75.00% <0.00%> (-20.24%)	⬇️
src/promotion.jl	24.13% <0.00%> (-19.35%)	⬇️
src/complex.jl	83.33% <0.00%> (-16.67%)	⬇️
src/range.jl	75.60% <0.00%> (-14.19%)	⬇️
src/pkgdefaults.jl	7.14% <0.00%> (-11.47%)	⬇️
src/logarithm.jl	61.39% <0.00%> (-8.16%)	⬇️
src/conversion.jl	81.81% <0.00%> (-6.42%)	⬇️
src/units.jl	80.17% <0.00%> (-5.35%)	⬇️
... and 6 more

---

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 492c475...b3f0f9e. Read the comment docs.

[sostock]

At first it seemed weird to me that UnitfulAtomic.jl is under “Units packages” and NaturallyUnitful.jl is under “Feature additions” even though both do similar things. But I guess it is correct since UnitfulAtomic.jl defines its own units and NaturallyUnitful.jl does not.