docs: update contributor list from git log

This commit adds contributors that didn't add themselves to the release
notes by extracting their GitHub username (or, if available their
name and surname from GitHub) from the git log manually.

docs/release-notes/release-notes-0.18.0.md

@@ -530,25 +530,56 @@ bitcoin peers' feefilter values into account](https://github.com/lightningnetwor
 # Contributors (Alphabetical Order)
 
 * Alex Akselrod
+* Alex Sears
 * Amin Bashiri
 * Andras Banki-Horvath
+* AtomicInnovation321
+* bartoli
 * BitcoinerCoderBob
+* bitromortac
+* bota87
+* Calvin Zachman
 * Carla Kirk-Cohen
+* cristiantroy
+* cuinix
+* davisv7
 * Elle Mouton
 * ErikEk
+* Eugene Siegel
 * Feelancer21
+* ffranr
+* Hao Wang
+* hidewrong
 * Jesse de Wit
+* João Thallis
+* Jonathan Harvey-Buschel
 * Joost Jager
+* Jordi Montes
 * Keagan McClelland
+* kilrau
+* mani2310
 * Marcos Fernandez Perez
 * Matt Morehouse
+* Michael Rooke
 * Mohamed Awnallah
 * Olaoluwa Osuntokun
+* Oliver Gugger
 * Ononiwu Maureen Chiamaka
+* Sam Korn
+* saubyk
+* Simone Ragonesi
 * Slyghtning
+* tdb3
 * Tee8z
+* testwill
+* Thabokani
+* threewebcode
 * Turtle
-* Hao Wang
+* twofaktor
+* vuittont60
 * w3irdrobot
+* weiliy
+* xiaoxianBoy
 * Yong Yu
+* zhiqiangxu
 * Ziggie