add repository field to package.json

package.json

 {
-  "name": "html-custom-elements",
-  "version": "0.0.1",
-  "description": "",
-  "main": "index.js",
-  "scripts": {
-    "build": "node_modules/.bin/rollup -c rollup.config.js",
-    "watch": "onchange '*.js' -v -- npm run build",
-    "doc": "esdoc -c ./esdoc.json"
-  },
-  "author": "S.Volke",
-  "license": "MIT",
-  "devDependencies": {
-    "browser-es-module-loader": "^0.1.6",
-    "doxdox": "^0.1.15",
-    "esdoc": "^0.4.8",
-    "onchange": "~3.0.2",
-    "rollup": "~0.35.10"
-  }
+    "name": "html-custom-elements",
+    "version": "0.0.1",
+    "description": "",
+    "main": "index.js",
+    "scripts": {
+        "build": "node_modules/.bin/rollup -c rollup.config.js",
+        "watch": "onchange '*.js' -v -- npm run build",
+        "doc": "esdoc -c ./esdoc.json"
+    },
+    "author": "S.Volke",
+    "license": "MIT",
+    "repository" :
+    { "type" : "git",
+      "url" : "https://tgm-git.jade-hs.de/JadeProListening/html-custom-elements"
+    }
+    "devDependencies": {
+        "browser-es-module-loader": "^0.1.6",
+        "esdoc": "^0.4.8",
+        "onchange": "~3.0.2",
+        "rollup": "~0.36.0"
+    }
 }