Add 'get rickrolled' (#273)

* get rickrolled hahahahahahahahahaha

* Update entries/rickroll-pcm/game.json

* Update slug format in game.json

---------

Co-authored-by: Antonio Vivace <avivace4@gmail.com>

Author: FijiAura

entries/rickroll-pcm/PCM.demo.wgraphics_003.png

@@ -0,0 +1,19 @@
+{
+    "description": "Based off of the NES version.",
+    "developer": "FijiAura",
+    "files": [
+        {
+            "default": true,
+            "filename": "rickroll.gbc",
+            "playable": true
+        }
+    ],
+    "platform": "GBC",
+    "rom": "rickroll.gbc",
+    "screenshots": [
+        "PCM.demo.wgraphics_003.png"
+    ],
+    "slug": "rickroll-pcm",
+    "title": "Rickroll PCM",
+    "typetag": "demo"
+}