fix trailing paren

experiment/production/GPRS-GPS-notes.md

@@ -89,7 +89,7 @@ EOF
 shutdown -r now
 ```
 
-([src](https://sixfab.com/forums/topic/how-to-remove-interface-wwan0/)
+([src](https://sixfab.com/forums/topic/how-to-remove-interface-wwan0/))
 
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