fixes go link (#752)

Author: terakilobyte

source/security/client-side-field-level-encryption-guide.txt

@@ -1364,7 +1364,7 @@ To view and download a runnable example of CSFLE, select your driver below:
       :tabid: go
 
       **GitHub:** `Go CSFLE runnable example
-      <https://github.com/mongodb-university/csfle-guides/tree/master/gocse>`__
+      <https://github.com/mongodb-university/csfle-guides/tree/master/go>`__
 
 Move to Production
 ~~~~~~~~~~~~~~~~~~