Updated build instructions #22

	#
	# continuous integration workflow
	#
	name: build repo
	env:
	PACKAGE: frequency_cam
	on:
	push:
	branches: [ master]
	pull_request:
	branches: [ master]
	workflow_dispatch:
	branches: [ master]

	jobs:
	build_focal_noetic:
	runs-on: ubuntu-20.04
	name: focal/noetic (x86_64)
	container:
	image: berndpfrommer/focal_noetic
	steps:
	- name: check out github repo
	uses: actions/checkout@v3
	with:
	path: src/${{ env.PACKAGE }}
	fetch-depth: 0
	- name: compile from source
	run: ./src/${{ env.PACKAGE }}/.github/scripts/build_ros1.bash ${{ env.PACKAGE }}

	build_focal_galactic:
	runs-on: ubuntu-20.04
	container:
	image: berndpfrommer/focal_galactic
	name: focal/galactic (x86_64)
	steps:
	- name: check out github repo
	uses: actions/checkout@v3
	with:
	path: src/${{ env.PACKAGE }}
	fetch-depth: 0
	- name: compile from source
	run: ./src/${{ env.PACKAGE }}/.github/scripts/build_ros2.bash ${{ env.PACKAGE }}

	build_jammy_humble:
	runs-on: ubuntu-22.04
	container:
	image: berndpfrommer/jammy_humble
	name: jammy/humble (x86_64)
	steps:
	- name: check out github repo
	uses: actions/checkout@v3
	with:
	path: src/${{ env.PACKAGE }}
	fetch-depth: 0
	- name: compile from source
	run: ./src/${{ env.PACKAGE }}/.github/scripts/build_ros2.bash ${{ env.PACKAGE }}

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