meta: Fix image URLs in README #947

	name: C-ray CI

	on: [push, pull_request]

	jobs:
	macos:
	name: macOS Build
	runs-on: macos-latest
	steps:
	- uses: actions/checkout@v1
	- name: cmake
	run: cmake .
	- name: build
	run: make
	linux:
	name: Linux Build
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v1
	- name: cmake
	run: cmake .
	- name: build
	run: make
	winbuild:
	name: Windows Build
	runs-on: windows-latest
	steps:
	- uses: actions/checkout@v1
	- uses: microsoft/[email protected]
	- name: cmake
	run: cmake -G "Visual Studio 17 2022" -A x64 .
	- name: build
	run: msbuild c-ray.sln /p:Configuration=Release /p:WarningLevel=0

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