update release process notes #812

Job	Run time
Linux centos 7	4m 30s
Linux fedora latest	4m 2s
Native Linux (WError)	5m 20s
Native Linux (libc++ debug)	5m 15s
Native Linux (c++17)	4m 32s
Cross mingw64 DLL	10m 12s
Cross mingw64 static	11m 40s
RTEMS5	15m 5s
Native Linux with clang	4m 53s
Native Linux with clang ubsan	4m 56s
Native Linux with libevent stable	4m 43s
Native Linux with 7.0.2	4m 37s
Native Linux with 3.15	3m 52s
Native Linux with 3.14	5m 47s
OSX	3m 49s
vs2019 DLL	7m 47s
vs2019 static	8m 35s
	1h 49m 35s

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