use dependency from github rather than npm

package-lock.json

@@ -143,6 +143,11 @@
         }
       }
     },
+    "@sveltejs/eslint-config": {
+      "version": "github:sveltejs/eslint-config#e8a9b27cd3f7aa66388474412b1a5c11c5a44ade",
+      "from": "github:sveltejs/eslint-config#v0.0.1",
+      "dev": true
+    },
     "@tootallnate/once": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/@tootallnate/once/-/once-1.0.0.tgz",

package.json

@@ -63,6 +63,7 @@
     "@rollup/plugin-sucrase": "^3.0.0",
     "@rollup/plugin-typescript": "^2.0.1",
     "@rollup/plugin-virtual": "^2.0.0",
+    "@sveltejs/eslint-config": "github:sveltejs/eslint-config#v0.0.1",
     "@types/mocha": "^5.2.7",
     "@types/node": "^8.10.53",
     "@typescript-eslint/eslint-plugin": "^3.0.2",