Clean-up Readme,CodeCov update (#1616) #1908

Job	Run time
PSV.Linux.22.04.gcc9.Cpplint	8m 40s
PSV.Linux.22.04.gcc9.Tests.CodeCov	10m 22s
PSV.MacOS14.Xcode15	4m 47s
PSV.Linux.22.04.clang	8m 49s
PSV.Linux.Android.22.04	5m 19s
PSV.Linux.22.04.gcc13.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	8m 22s
PSV.Linux.22.04.gcc9.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	2m 10s
PSV.iOS.MacOS13.Xcode15	13m 18s
PSV.MacOS13.Xcode15.x86_64	6m 28s
PSV.MacOS13.Xcode16	3m 38s
PSV.Linux.22.04.gcc13	11m 51s
PSV.Linux.22.04.gcc11.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	2m 10s
PSV.Linux.22.04.gcc11	8m 0s
PSV.iOS.MacOS13.Xcode14	10m 53s
PSV.iOS.MacOS14.Xcode15	5m 47s
PSV.iOS.MacOS13.Xcode16	6m 1s
PSV.Win.VC2019	9m 28s
PSV.Commit.Checker	-1s
	2h 6m 2s

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