Updated readme to mention .net 8 #269

	name: Build Linux
	on: [push, pull_request]
	env:
	DOTNET_CLI_TELEMETRY_OPTOUT: 1
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v1
	with:
	fetch-depth: 0
	- name: Setup .NET Core 6
	uses: actions/setup-dotnet@v1
	with:
	dotnet-version: 6.x
	- name: Setup .NET Core 8
	uses: actions/setup-dotnet@v1
	with:
	dotnet-version: 8.x
	- name: Build Reason
	run: "echo ref: ${{github.ref}} event: ${{github.event_name}}"
	- name: Build Version
	shell: bash
	run: \|
	dotnet tool install --global minver-cli --version 5.0.0
	version=$(minver --tag-prefix v)
	echo "MINVERVERSIONOVERRIDE=$version" >> $GITHUB_ENV
	- name: Build
	run: dotnet build --configuration Release Exceptionless.Net.NonWindows.sln
	- name: Run Tests
	run: dotnet test --configuration Release --no-build Exceptionless.Net.NonWindows.sln

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