Drop a line to Typescript developers

[rassie]

In an effort to make the original tsserver (which is part of the Typescript distribution) a fully-fledged LSP server, @DanielRosenwasser (Product Manager for TypeScript at Microsoft) asked client implementers to reach out to him. Would be nice if someone from the lsp-mode team could do just this. Thank you.

[yyoncho]

Thank you. Dropped a line.