fix: cleaned the FAQ related to API validation (#538)

nbs/docs/getting-started/5_faq.ipynb

@@ -168,14 +168,12 @@
     "<details>\n",
     "    <summary>What if my API key isn't validating?</summary>\n",
     "\n",
-    "If when you validate your API key, it returns\n",
+    "If when you validate your API key, it returns `False`\n",
     "\n",
-    "`False`\n",
-    "\n",
-    "* Check that your API key is active in your dashboard\n",
-    "\n",
-    "* Consider any firewalls your organization might have. There may be restricted access. If so, you can whitelist our endpoints.  \n",
-    "https://dashboard.nixtla.io/api and https://api.nixtla.io/\n",
+    "* If you are targeting an Azure endpoint, getting `False` from the `NixtlaClient.validate_api_key` method is expected. You can skip this step when taregting an Azure endpoint and proceed diretly to forecasting instead.\n",
+    "* If you are not taregting an Azure endpoint, then you should check the following:\n",
+    "    * Check that your API key is active in your dashboard by visiting https://dashboard.nixtla.io/\n",
+    "    * Consider any firewalls your organization might have. There may be restricted access. If so, you can whitelist our endpoint https://api.nixtla.io/\n",
     "\n",
     "</details>"
    ]