Add introduction plugin (#127)

source/app/mocks/api/github/graphql/introduction.repository.mjs

@@ -0,0 +1,9 @@
+/**Mocked data */
+  export default function({faker, query, login = faker.internet.userName()}) {
+    console.debug("metrics/compute/mocks > mocking graphql api result > introduction/repository")
+    return ({
+      repository:{
+        description:faker.lorem.sentences(),
+      },
+    })
+  }