add challs offline message

Author: burturt

conf.d/10-public.yaml

@@ -14,9 +14,9 @@ homeContent: |
   <!--[lactf div class="lactf-rules card"]-->
 
   ## Challenge Archive
+  **Challenges are now offline.**
+  
   All of our past challenges, including deployment configs and some author solve scripts, can be found here: [https://github.com/uclaacm/lactf-archive](https://github.com/uclaacm/lactf-archive).
-
-  Challenges will remain online through Sunday, Feburary 16th to allow for writeup submission. Visit our discord at [https://lac.tf/discord](https://lac.tf/discord) for the form and chat about challenge solutions!
   
   <!--[lactf /div]-->