[release-branch.r60] doc: document r60.2

««« CL 5204041 / 1fb56f387a76
doc: document r60.2

R=rsc, dsymonds
CC=golang-dev
https://golang.org/cl/5204041
»»»

R=bradfitz
CC=golang-dev
https://golang.org/cl/5204043
1 file changed