fix(core): update

markdown/limitations.md

@@ -0,0 +1,15 @@
+# Limitations
+
+api.global is deplyoing a few hard limitations on a per account basis:
+
+* 1 million API requests per hour
+* 12 million API requests per day
+
+!!! hint
+    running into one of those limitations will result in a 429 status code with an info of when to try again attached as json payload in the response.
+
+    ```json
+    {
+      "retryIn": 3600000
+    }
+    ```