diff --git a/arrays-strings/unique_chars.ipynb b/arrays-strings/unique_chars.ipynb
index 350476d..a621d9f 100644
--- a/arrays-strings/unique_chars.ipynb
+++ b/arrays-strings/unique_chars.ipynb
@@ -45,8 +45,6 @@
    "source": [
     "## Test Cases\n",
     "\n",
-    "*Identifying and running through general and edge cases are important.  You generally will not be asked to write a unit test like what is shown below.*\n",
-    "\n",
     "* '' -> True\n",
     "* 'foo' -> False\n",
     "* 'bar' -> True"
@@ -186,6 +184,13 @@
     "## Unit Test"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "*It is important to identify and run through general and edge cases from the [Test Cases](#Test-Cases) section by hand.  You generally will not be asked to write a unit test like what is shown below.*"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 4,