Update README.md - badges and description (#80) #71

Job	Run time
release / Quality Checks / Check the CHARMHUB_TOKEN secret	1s
release / Quality Checks / Linting / Lint	9s
release / Quality Checks / Static Analysis / Static Analysis of Charm	19s
release / Quality Checks / Inclusive naming / check	5s
release / Quality Checks / Scenario Tests / Scenario tests	39s
release / Quality Checks / Static Analysis / Static Analysis of Libs	18s
release / Quality Checks / Unit Tests / Unit tests	17s
release / Quality Checks / Check libraries	30s
release / Quality Checks / CodeQL analysis / Analyze (python)	1m 3s
release / Quality Checks / Integration Tests / Integration Tests	39m 50s
release / Release any bumped charm library	26s
release / Release Charm and Libraries / Build the charms	6m 6s
release / Release Charm and Libraries / Build the charms for ARM	0s
release / Release Charm and Libraries / Release arm64 to CharmHub	0s
release / Release Charm and Libraries / Release to CharmHub (tempo-coordinator-k8s_ubuntu-22.04-amd64.charm)	54s
release / Release Charm and Libraries / Charm List	0s
	50m 37s

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