add link to who is hiring thread

Signed-off-by: Nell Shamrell <[email protected]>

Author: nellshamrell

content/2022-07-13-this-week-in-rust.md

@@ -303,7 +303,9 @@ https://github.com/rust-lang/this-week-in-rust/issues/3412
 
 -->
 
-*Tweet us at [@ThisWeekInRust](https://twitter.com/ThisWeekInRust) to get your job offers listed here!*
+## Jobs
+
+Please see the latest [Who's Hiring thread on r/rust](https://www.reddit.com/r/rust/comments/voglel/official_rrust_whos_hiring_thread_for_jobseekers/)
 
 # Quote of the Week