Add nuget docs

[dthaler]

Signed-off-by: Dave Thaler dthaler@microsoft.com

Description

Add docs about using the nuget package.
This PR assumes that PR #1372 is merged first.

Fixes #1382

Testing

N/A

Documentation

This is a doc-only change.

[codecov]

Codecov Report

Merging #1386 (29a7109) into main (25b35d2) will increase coverage by 1.41%.
The diff coverage is n/a.

❗ Current head 29a7109 differs from pull request most recent head 8f86f43. Consider uploading reports for the commit 8f86f43 to get more accurate results

@@            Coverage Diff             @@
##             main    #1386      +/-   ##
==========================================
+ Coverage   82.35%   83.76%   +1.41%     
==========================================
  Files         123      120       -3     
  Lines       21233    20879     -354     
==========================================
+ Hits        17486    17489       +3     
+ Misses       3747     3390     -357     

Impacted Files	Coverage Δ
libs/platform/ebpf_epoch.c	87.31% <0.00%> (-0.37%)	⬇️
tests/end_to_end/test_helper.cpp	89.07% <0.00%> (-0.34%)	⬇️
x64/Release/Elf.c
x64/Release/EverParse.h
x64/Release/ElfWrapper.c
libs/api/ebpf_api.cpp	85.14% <0.00%> (+0.25%)	⬆️

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