edit readme: add chartjs & change log
edit readme: add chartjs & change log


Former-commit-id: fb42cfb9fac854e476ab8b0a2a07a9516548d358
vcswbraunschweig/vcswbraunschweig.github.io,vcswbraunschweig/vcswbraunschweig.github.io,sasikanth513/sasikanth513.github.io,udayrajmehra/udayrajmehra.github.io,sasikanth513/sasikanth513.github.io,udayrajmehra/udayrajmehra.github.io