Issue #2990903 by B-Prod, Neslee Canil Pinto: Add the Colorbox library as a suggestion in Composer

composer.json

@@ -9,6 +9,36 @@
   },
   "license": "GPL-2.0+",
   "minimum-stability": "dev",
+  "authors": [
+    {
+      "name": "Neslee Canil Pinto",
+      "homepage": "https://www.drupal.org/u/neslee-canil-pinto",
+      "role": "Maintainer"
+    },
+    {
+      "name": "Fredrik Jonsson",
+      "homepage": "https://www.drupal.org/u/frjo",
+      "role": "Maintainer"
+    }
+  ],
+  "repositories": [
+    {
+      "type": "package",
+      "package": {
+        "name": "jackmoore/colorbox",
+        "version": "1.6.4",
+        "type": "drupal-library",
+        "dist": {
+          "url": "https://github.com/jackmoore/colorbox/archive/1.6.4.zip",
+          "type": "zip"
+        }
+      }
+    }
+  ],
+  "require": {},
+  "suggest": {
+    "jackmoore/colorbox": "The Colorbox library is required to use the drupal/colorbox module."
+  },
   "extra": {
     "drush": {
       "services": {