doc: remove comma splice in events.md

PR-URL: #42484
Reviewed-By: Mestery <mestery@protonmail.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>

doc/api/events.md

@@ -828,7 +828,7 @@ events. Listeners installed using this symbol are called before the regular
 `'error'` listeners are called.
 
 Installing a listener using this symbol does not change the behavior once an
-`'error'` event is emitted, therefore the process will still crash if no
+`'error'` event is emitted. Therefore, the process will still crash if no
 regular `'error'` listener is installed.
 
 ## `events.getEventListeners(emitterOrTarget, eventName)`