Update README.md

Merge pull request #20 from denandz/dependabot/go_modules/golang.org/…

…x/net-0.17.0

Bump golang.org/x/net from 0.7.0 to 0.17.0

Capture replay shortcut on any proxyview window

readme updates

Add CTRL-G to send the current replay request

bugfix - incremented replay titles caused save/restore issues

Fixed request/response view in proxyview

Added install info