doc: update 1.9.5 release notes to include net/http/pprof
doc: update 1.9.5 release notes to include net/http/pprof

Change-Id: I7c0716711a2cadd347fdf242c792b109539f7355
Reviewed-on: https://go-review.googlesource.com/103163
Reviewed-by: Andrew Bonventre <682ad9f487f614f19e8b7cc5d340bdc8e1c1b128@golang.org>

josharian/go,josharian/go,Cofyc/go,josharian/go,golang/go,nawawi/go,josharian/go,CAFxX/go,golang/go,akutz/go,golang/go,cloudflare/go,golang/go,golang/go,nawawi/go,golang/go,nawawi/go,akutz/go,Cofyc/go,nawawi/go,golang/go,CAFxX/go,CAFxX/go,CAFxX/go,CAFxX/go,cloudflare/go,golang/go,akutz/go,CAFxX/go,nawawi/go,akutz/go,CAFxX/go,cloudflare/go,josharian/go,cloudflare/go,akutz/go,Cofyc/go,josharian/go,cloudflare/go,nawawi/go,Cofyc/go,Cofyc/go,Cofyc/go,cloudflare/go,akutz/go,akutz/go,cloudflare/go,Cofyc/go,Cofyc/go,josharian/go,nawawi/go,josharian/go,nawawi/go,CAFxX/go,akutz/go,cloudflare/go