Update stand_alone_install.md

[ljhwang]

One grammar correction so I took the opportunity to insert a bunch of picky commas.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (aa23e49) 93.40% compared to head (7551100) 93.44%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #593      +/-   ##
==========================================
+ Coverage   93.40%   93.44%   +0.04%     
==========================================
  Files          92       92              
  Lines        6349     6348       -1     
==========================================
+ Hits         5930     5932       +2     
+ Misses        419      416       -3     

see 1 file with indirect coverage changes

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[github-actions]

Benchmark	Main	Feature	Difference (99.9% CI)
Slab interpolation simple none	0.971 ± 0.003 (s=454)	0.971 ± 0.003 (s=475)	-0.1% .. +0.1%
Slab interpolation curved simple none	0.972 ± 0.006 (s=454)	0.972 ± 0.007 (s=474)	-0.1% .. +0.2%
Spherical slab interpolation simple none	1.068 ± 0.014 (s=410)	1.068 ± 0.006 (s=435)	-0.2% .. +0.2%
Slab interpolation simple curved CMS	1.013 ± 0.007 (s=433)	1.012 ± 0.006 (s=458)	-0.2% .. +0.1%
Spherical slab interpolation simple CMS	1.334 ± 0.007 (s=323)	1.334 ± 0.007 (s=354)	-0.1% .. +0.1%
Spherical fault interpolation simple none	1.075 ± 0.005 (s=412)	1.075 ± 0.006 (s=427)	-0.1% .. +0.1%
Cartesian min max surface	2.166 ± 0.027 (s=220)	2.165 ± 0.023 (s=198)	-0.4% .. +0.4%
Spherical min max surface	6.906 ± 0.026 (s=56)	6.905 ± 0.022 (s=77)	-0.2% .. +0.2%