Feature request: Configure keybindings from vscode

[Frankwii]

I wanted to change the "next tabstop" key to "enter" instead of the default "tab". This is possible by editing the "package.json" file in the extension directory.

However, no indication is given in the docs or inside vscode on how to do this. It would be good to add it to the "keyboard shorcuts" vscode screen, or perhaps make it always agree with the variable "jumpToNextSnippetPlaceholder".

[Frankwii]

I just found the "Extension Keyboard Shorcuts" button on the Extension tab. Sorry for the ignorance!