docs: add contrib guidelines #3

	name: .NET

	on:
	push:
	pull_request:

	jobs:
	build:
	name: "Build & Test"
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2

	- name: Setup .NET
	uses: actions/setup-dotnet@v3
	with:
	dotnet-version: 7.0.x

	- name: Add NuGet source
	run: dotnet nuget add source --username oliverbooth --password ${{ secrets.GITHUB_TOKEN }} --store-password-in-clear-text --name github "https://nuget.pkg.github.com/oliverbooth/index.json"

	- name: Restore dependencies
	run: dotnet restore

	- name: Build
	run: dotnet build --no-restore --configuration Release

	- name: Test
	run: dotnet test --no-build --verbosity normal

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