html/charmap: update table with latest data
html/charmap: update table with latest data

Change-Id: I7ae395999a3e61afa3a6ee15d076edae73d8a83b
Reviewed-on: https://go-review.googlesource.com/17800
Reviewed-by: Hyang-Ah Hana Kim <d7e82c3c07f92613bcbf9a1e88f6b96c13caa3b0@gmail.com>
Reviewed-by: Andy Balholm <e3579b1e47f273529f0f929453e939a68ede9fd1@balholm.com>

golang/net,albertjin/golang-net,cesanta/goxnet,cmars/tools,cesanta/goxnet,cmars/tools,cmars/tools,albertjin/golang-net,cmars/tools,DramaFever/golang.org-x-net,DramaFever/golang.org-x-net