Handle edge-case in chart upgrade command
Changelog for 0.8.56:
Commits
faff958 fix: handle "v" prefix on image tags when upgrading by @dirien
20f3514 Update stats by @alexellis
ba42fe3 Swap image out for eBook link by @alexellis
518cbfc Update ToC for Helm features by @alexellis
Changes: 0.8.55...0.8.56
Generated by Derek