add Timothy to tsc list
add Timothy to tsc list

Refs: https://github.com/nodejs/TSC/issues/520

PR-URL: https://github.com/nodejs/email/pull/97
Refs: https://github.com/nodejs/TSC/issues/520
Reviewed-By: Jeremiah Senkpiel <f1782d15e31ad502ea2c097c21cc235811d0cb7c@rocketmail.com>
Reviewed-By: Colin Ihrig <838f779c91673db29b8572ea3f54d191d3878ae2@gmail.com>
Reviewed-By: Michael Dawson <241bf52ebd97cc4ec83d57b04d1f9e9053df032e@ca.ibm.com>
Reviewed-By: Rich Trott <28a7b6144c43947e3f532c033ff42c8a2ae08045@gmail.com>
Reviewed-By: Matteo Collina <9e82044cc2ddcb8c7b7cca6ead2a720852437b44@gmail.com>
Reviewed-By: Ali Ijaz Sheikh <0aae46e22085b8114be801f98c6281c5fc13b487@google.com>
Reviewed-By: Franziska Hinkelmann <bfca2660d8321d14063d908366d26ce6f4981952@gmail.com>
Reviewed-By: Gibson Fahnestock <c0a850ada395a21aea35ea96f1fadcdd1d6eb48b@gmail.com>

nodejs/email