Update doc/dev/2025-12-04-echokit-day-11-groq.md

Co-authored-by: Copilot <[email protected]>

Author: alabulei1

doc/dev/2025-12-04-echokit-day-11-groq.md

@@ -63,7 +63,7 @@ nohup target/release/echokit_server &
 ```
 
 
-Then return to the setup page, pair the device if needed.You should immediately feel the speed difference — especially on follow-up questions.
+Then return to the setup page, pair the device if needed. You should immediately feel the speed difference — especially on follow-up questions.
 
 ---