Update README.md to include v2 addons #570

Job	Run time
Lint	34s
Tests (ubuntu-latest, chrome)	59s
Floating Dependencies (ubuntu-latest, chrome)	1m 0s
Tests (ubuntu-latest, firefox)	1m 6s
Floating Dependencies (ubuntu-latest, firefox)	1m 11s
Tests - ember-lts-3.28	1m 37s
Tests - ember-lts-4.4	1m 35s
Tests - ember-lts-4.8	1m 44s
Tests - ember-lts-4.12	1m 39s
Tests - ember-5.0	1m 25s
Tests - ember-release	1m 28s
Tests - ember-default	1m 38s
Tests - tsc	29s
Tests - embroider-safe	1m 20s
Tests - embroider-optimized	1m 24s
Tests - ember-beta	1m 44s
Tests - ember-canary	1m 32s
	22m 25s

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