diff --git a/docs/quickstart.ipynb b/docs/quickstart.ipynb
index fbfa0d66..dd486674 100644
--- a/docs/quickstart.ipynb
+++ b/docs/quickstart.ipynb
@@ -6,7 +6,7 @@
    "source": [
     "# Getting Started with PyFixest\n",
     "\n",
-    "## What is a fix effect model?\n",
+    "## What is a fixed effect model?\n",
     "\n",
     "A fixed effect model is a statistical model that includes fixed effects, which are parameters that are estimated to be constant across different groups. \n",
     "\n",
@@ -719,6 +719,13 @@
     "fit.vcov({\"CRV3\": \"group_id\"}).summary()"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "The estimated covariance matrix is available as an attribute of the `Feols` object called `._vcov`."
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},