Minor misspelling in the README.md

[OliverKreitmeyer]

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I'm using this "question" issue to quickly report that the section:

3. Pack into NuGet package

dotnet pack -c Release -p:Version=1.0.0 src/dotnet/Proton.Cryptograpy.csproj --output ~/local-nuget-repository

in the README.md has a minor misspelling that made me spin in circles for a bit as I couldn't understand why the command wast working.

... src/dotnet/Proton.Cryptograpy.csproj ... should be ... src/dotnet/Proton.Cryptography.csproj ...
It is missing the h in Cryptography, making it unable to find the file.