plugin.json author.url and grafanaDependency updated

Author: speakyourcode

src/plugin.json

@@ -6,7 +6,7 @@
     "description": "Button Control Panel",
     "author": {
       "name": "Speak Your Code",
-      "url": "www.speakyourcode.com"
+      "url": "https://www.speakyourcode.com"
     },
     "keywords": ["button", "control", "input"],
     "logos": {
@@ -28,7 +28,7 @@
     "updated": "%TODAY%"
   },
   "dependencies": {
-    "grafanaVersion": "7.x.x",
+    "grafanaDependency": ">=7.0.0",
     "plugins": []
   }
 }