Update plugin.json (#3)

Update URL for data source plugin

Author: charlesbaer

src/plugin.json

@@ -24,11 +24,11 @@
     "links": [
       {
         "name": "Website",
-        "url": "https://github.com/GoogleCloudPlatform/cloud-logging-grafana-data-source-plugin"
+        "url": "https://github.com/GoogleCloudPlatform/cloud-logging-data-source-plugin"
       },
       {
         "name": "License",
-        "url": "https://github.com/GoogleCloudPlatform/cloud-logging-grafana-data-source-plugin/blob/master/LICENSE"
+        "url": "https://github.com/GoogleCloudPlatform/cloud-logging-data-source-plugin/blob/master/LICENSE"
       }
     ],
     "screenshots": [],
@@ -39,4 +39,4 @@
     "grafanaDependency": ">=7.0.0",
     "plugins": []
   }
-}
+}