chg: [README] updated

Author: adulau

README.md

@@ -816,7 +816,7 @@ Category: *tool* - source: *MISP Project* - total: *606* elements
 
 [UAVs/UCAVs](https://www.misp-galaxy.org/uavs) - OSINT Database of Unmanned Combat Aerial Vehicle
 
-Category: *Military equipment* - source: *OSINT* - total: *735* elements
+Category: *Military equipment* - source: *OSINT* - total: *739* elements
 
 [[HTML](https://www.misp-galaxy.org/uavs)] - [[JSON](https://github.com/MISP/misp-galaxy/blob/main/clusters/uavs.json)]