add external support

README.md

@@ -4,4 +4,3 @@
 2. Virtual Governments - Map of Virtual Countries from OOVC organisation. ([vgovernments](https://cimengine.github.io/map/?id=vgovernments))
 3. International Virtual Countries - Map of International Virtual Countries (League of Virtual Nations). ([ivc](https://cimengine.github.io/map/?id=ivc))
 4. Political Map of Dusiburg - Политическая карта Дусибурской Республики ([dusiburg](https://cimengine.github.io/map/?id=dusiburg))
-5. `OVN` map - Map of Virtual Countries ([movc](https://cimengine.github.io/map/?id=movc))

index.js

@@ -1,5 +1,6 @@
 const fs = require("fs");
 
+async function run() {
   const index = JSON.parse(fs.readFileSync("./index.json", "utf-8"));
 
   let readme = "# CIMEngine map list\n\n";
@@ -7,9 +8,17 @@ let readme = "# CIM Engine map list\n\n";
   let k = 1;
   for (let id in index) {
     let item = index[id];
+
+    if (item.external) {
+      item = await (await fetch(item.external)).json();
+    }
+
     readme += `${k++}. ${item.name} ${
       item.description ? `- ${item.description}` : ""
     } ([${id}](https://cimengine.github.io/map/?id=${id}))\n`;
   }
 
   fs.writeFileSync("./README.md", readme);
+}
+
+run();