Fix: Update the 'cmd' setting for the 'jsonls' LSP server

[austindd]

I encountered a bug with the default jsonls LSP server config. Perhaps I was missing something, but this change fixed my issue.

Before, the default cmd for jsonls was this:

    cmd = { 'vscode-json-language-server', '--stdio' },

This caused a bug where the LSP server was not loaded. I changed it to this (removed a dash):

    cmd = { 'vscode-json-languageserver', '--stdio' },

This change fixed the problem and enabled the LSP server to be attached.

[justinmk]

ok, but that doesn't match the docs (in the very same file).

@hrsh7th does this look right ?

[lithammer]

How did you install it (os, platform, package manager etc)?