Update changelog for 3.0.3 #80

Job	Run time
lint-unit / cookstyle	30s
lint-unit / markdown-link-check	10s
lint-unit / check-metadata	0s
lint-unit / markdownlint-cli2	4s
lint-unit / rspec	34s
lint-unit / yamllint	8s
integration (amazonlinux-2, default)	1m 16s
integration (centos-7, default)	2m 13s
integration (centos-8, default)	35s
integration (debian-9, default)	1m 11s
integration (debian-10, default)	1m 58s
integration (ubuntu-1804, default)	2m 45s
integration (ubuntu-2004, default)	2m 3s
integration (fedora-latest, default)	2m 4s
integration (opensuse-leap, default)	3m 2s
	18m 33s

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