release: update CHANGELOG for v1.5.1 Signed-off-by: Mahe Tardy <mahe.tardy@gmail.com>

Update CHANGELOG for v1.5.0 

Add notes in the CHANGELOG for 1.4.0 

Add some notes in the CHANGELOG for 1.3.0 

Update TOC in README 

Update CHANGELOG and add links to it in the README 

Add a release rule in the Makefile 

Add runAsUser to 0 in runAsRootPod in the admission bucket