Added key part

.replit

@@ -0,0 +1,2 @@
+language = "nodejs"
+run = "npm start"

docs/README.md

@@ -3,6 +3,14 @@ A wrapper for the Apple Music API written in NodeJS
 
 ## Quick start
 
+### Getting keys
+#### Registering an identifier
+So first you need to register an identifier for MusicKit.
+Go [here](https://developer.apple.com/account/resources/identifiers/list) and create a Media ID. Identifiers are not needed for this package, but you still need one to...
+
+#### Creating a key
+After you got the identifier, go [here](https://developer.apple.com/account/resources/authkeys/list) and create a key for Media services. Create a key with *at least* MusicKit permissions.
+
 ### Installation
 Installation is easy! Just do `npm i ${package}` (or `yarn add ${package}` if you use the superior package manager) and enjoy!
 

package.json

@@ -7,11 +7,19 @@
     "type": "git",
     "url": "https://github.com/Exerra/node-musickit-api.git"
   },
-  "keywords": ["node", "musickit", "node-musickit", "apple", "apple music", "music", "api"],
+  "keywords": [
+    "node",
+    "musickit",
+    "node-musickit",
+    "apple",
+    "apple music",
+    "music",
+    "api"
+  ],
   "author": "Exerra <[email protected]> (https://exerra.xyz)",
   "license": "MIT",
-  "engines": { 
-    "node" : ">=12" 
+  "engines": {
+    "node": ">=12"
   },
   "dependencies": {
     "axios": "^0.21.4",