Update janus.json

janus.json

@@ -41,7 +41,7 @@
 			"similiar_solution_url": "https://www.deltek.com/en-gb/products/vantagepoint",
 			"category": "Developer API"
 		}],
-		"licence_list": ["GNU General Public License Version 3"],
+		"licence_list": ["GPL v3.0"],
 		"source_code_download": "https://github.com/meetecho/janus-gateway",
 		"source_code_profile": "https://www.openhub.net/p/janus-gateway/analyses/latest/languages_summary",
 		"commercial_support_url": "https://janus.conf.meetecho.com/support.html",