Add reveal.js script (#2806)

json/revealjs.json

@@ -0,0 +1,43 @@
+{
+  "name": "RevealJS",
+  "slug": "revealjs",
+  "categories": [
+    12
+  ],
+  "date_created": "2025-03-03",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": 8000,
+  "documentation": "https://github.com/hakimel/reveal.js/wiki",
+  "website": "https://github.com/hakimel/reveal.js",
+  "logo": "https://static.slid.es/reveal/logo-v1/reveal-white-text.svg",
+  "description": "reveal.js is an open source HTML presentation framework. It's a tool that enables anyone with a web browser to create fully-featured and beautiful presentations for free.",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/revealjs.sh",
+      "resources": {
+        "cpu": 1,
+        "ram": 1024,
+        "hdd": 4,
+        "os": "debian",
+        "version": "12"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": null
+  },
+  "notes": [
+    {
+      "text": "Config file is at `/opt/revealjs/gulpfile.js`. Check the documentation for more information.",
+      "type": "info"
+    },
+    {
+      "text": "LiveReload is on port: 35729",
+      "type": "info"
+    }
+  ]
+}