Fix Zulip pings

Author: LeSeulArtichaut

triagebot.toml

@@ -76,42 +76,42 @@ exclude_labels = [
 [notify-zulip."I-prioritize"]
 zulip_stream = 227806 # #t-compiler/wg-prioritization
 topic = "I-prioritize #{number} {title}"
-message_on_add = "@**WG-prioritization** issue #{number} has been requested for prioritization."
+message_on_add = "@*WG-prioritization* issue #{number} has been requested for prioritization."
 message_on_remove = "Issue #{number}'s prioritization request has been removed."
 
 [notify-zulip."I-nominated"]
 required_labels = ["T-compiler"]
 zulip_stream = 227806 # #t-compiler/wg-prioritization
 topic = "I-prioritize #{number} {title}"
-message_on_add = "@**WG-prioritization** #{number} has been nominated for discussion in `T-compiler` meeting."
+message_on_add = "@*WG-prioritization* #{number} has been nominated for discussion in `T-compiler` meeting."
 message_on_remove = "#{number}'s nomination has been removed."
 
 [notify-zulip."beta-nominated"]
 zulip_stream = 227806 # #t-compiler/wg-prioritization
 topic = "Backport #{number} {title}"
-message_on_add = "@**WG-prioritization** PR #{number} has been requested for beta backport."
+message_on_add = "@*WG-prioritization* PR #{number} has been requested for beta backport."
 message_on_remove = "PR #{number}'s beta backport request has been removed."
 
 [notify-zulip."stable-nominated"]
 zulip_stream = 227806 # #t-compiler/wg-prioritization
 topic = "Backport #{number} {title}"
-message_on_add = "@**WG-prioritization** PR #{number} has been requested for stable backport."
+message_on_add = "@*WG-prioritization* PR #{number} has been requested for stable backport."
 message_on_remove = "PR #{number}'s stable backport request has been removed."
 
 [notify-zulip."S-waiting-on-team"]
 required_labels = ["T-compiler"]
 zulip_stream = 227806 # #t-compiler/wg-prioritization
 topic = "S-waiting-on-team #{number} {title}"
-message_on_add = "@**WG-prioritization** PR #{number} is waiting on `T-compiler`."
+message_on_add = "@*WG-prioritization* PR #{number} is waiting on `T-compiler`."
 message_on_remove = "PR #{number}'s is no longer waiting on `T-compiler`."
 
 [notify-zulip."P-critical"]
 zulip_stream = 227806 # #t-compiler/wg-prioritization
 topic = "P-critical #{number} {title}"
-message_on_add = "@**WG-prioritization** issue #{number} has been assigned `P-critical`."
+message_on_add = "@*WG-prioritization* issue #{number} has been assigned `P-critical`."
 
 [notify-zulip."P-high"]
 required_labels = ["regression-from-stable-to-*"]
 zulip_stream = 227806 # #t-compiler/wg-prioritization
 topic = "P-high regression #{number} {title}"
-message_on_add = "@**WG-prioritization** issue #{number} has been assigned `P-high` and is a regression."
+message_on_add = "@*WG-prioritization* issue #{number} has been assigned `P-high` and is a regression."