Improve README structure and add contribution - #343

Improve README structure and add contribution#343

alessandrasotelo11-lgtm wants to merge 2 commits into

cncf:maincncf/contribute-site:mainfrom

alessandrasotelo11-lgtm:alessandrasotelo11-lgtm-patch-1alessandrasotelo11-lgtm/contribute-site:alessandrasotelo11-lgtm-patch-1Copy head branch name to clipboard