Add README for dotnet examples

[kolesnikovae]

A short explanation of what the examples do.

[codecov]

Codecov Report

Merging #233 (0fa0375) into main (81ba6c4) will decrease coverage by 0.21%.
The diff coverage is 6.67%.

@@            Coverage Diff             @@
##             main     #233      +/-   ##
==========================================
- Coverage   56.25%   56.05%   -0.20%     
==========================================
  Files          74       74              
  Lines        3040     3053      +13     
==========================================
+ Hits         1710     1711       +1     
- Misses       1162     1174      +12     
  Partials      168      168              

Impacted Files	Coverage Δ
pkg/agent/upstream/remote/remote.go	64.62% <0.00%> (-1.00%)	⬇️
pkg/cli/cli.go	53.27% <0.00%> (-1.18%)	⬇️
pkg/storage/cache/cache.go	72.23% <0.00%> (-1.01%)	⬇️
pkg/util/debug/disk.go	0.00% <0.00%> (ø)
pkg/util/debug/ram.go	0.00% <0.00%> (ø)
pkg/storage/storage.go	60.75% <16.67%> (-1.28%)	⬇️
pkg/server/controller.go	41.51% <100.00%> (+0.56%)	⬆️

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[Rperry2174]

Looks great @kolesnikovae thanks!