1. Fix the pull/push commands showed on UI are incorrect
2. Replace "insecureRegistry" with "externalProtocol"
3. Using the secret rather than pasting text if users want to use the certificate of themselves
4. Refine NOTES.txt
Update the helm chart of Harbor to use 1.5 image. Specifically
`1.5.0-chart-patch` to include the fix to #4496 (for integration reason
this fix will not be merge to release branch).
Verified against kubenetes v1.10.0
* Update Harbor helm chart to deploy Harbor 1.4.0 release
* Change version to 0.1.0 and fix a doc error
* Fix auth_mode default value
* Refine doc and fix a typo