feat(): updated examples

examples/apidoc/RestClientV2/getConvertCoins.js

@@ -0,0 +1,19 @@
+const { RestClientV2 } = require('bitget-api');
+
+  // ENDPOINT: /api/v2/convert/currencies
+  // METHOD: GET
+  // PUBLIC: NO
+  // Link to function: https://github.com/tiagosiebler/bitget-api/blob/master/src/rest-client-v2.ts#L229
+
+const client = new RestClientV2({
+  apiKey: 'insert_api_key_here',
+  apiSecret: 'insert_api_secret_here',
+});
+
+client.getConvertCoins(params)
+  .then(response => {
+    console.log(response);
+  })
+  .catch(error => {
+    console.error(error);
+  });