Update README for `v4` Release (Similar to Python README) #397

	name: CI
	on:
	push:
	branches:
	- main
	- release-v*
	pull_request:
	branches:
	- main
	- release-v*
	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	dotnet-version: ["6.0.x", "7.0.x","8.0.x"]

	steps:
	- uses: actions/checkout@v2
	- name: Setup .NET Core SDK ${{ matrix.dotnet-version }}
	uses: actions/setup-dotnet@v3
	with:
	dotnet-version: ${{ matrix.dotnet-version }}
	- name: Install dependencies
	run: dotnet restore Deepgram.sln
	- name: Run tests
	run: dotnet test Deepgram.sln
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Setup .NET
	uses: actions/setup-dotnet@v1
	with:
	dotnet-version: "8.x.x"
	- name: Install dependencies
	run: dotnet restore Deepgram.sln
	- name: Build
	run: dotnet build Deepgram.sln --configuration Release --no-restore

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