diff --git a/00_Introduction.ipynb b/00_Introduction.ipynb
index 385d28e..5679abb 100644
--- a/00_Introduction.ipynb
+++ b/00_Introduction.ipynb
@@ -19,17 +19,17 @@
     "\n",
     "## Instructions for MacOS\n",
     "\n",
-    "  * Install macports following instructions at https://www.macports.org/install.php</li>\n",
+    "  * Install macports following instructions at https://www.macports.org/install.php\n",
     "  * Install the relevant python packages in macports\n",
     "\n",
     "  ```\n",
-    "  sudo port install py27-scipy +openblas </li>\n",
-    "  sudo port install py27-ipython +notebook </li>\n",
-    "  sudo port install py27-notebook </li>\n",
-    "  sudo port install py27-matplotlib </li>\n",
-    "  sudo port select --set python python27 </li>\n",
-    "  sudo port select --set ipython2 py27-ipython </li>\n",
-    "  sudo port select --set ipython py27-ipython </li>\n",
+    "  sudo port install py27-scipy +openblas\n",
+    "  sudo port install py27-ipython +notebook\n",
+    "  sudo port install py27-notebook\n",
+    "  sudo port install py27-matplotlib\n",
+    "  sudo port select --set python python27\n",
+    "  sudo port select --set ipython2 py27-ipython\n",
+    "  sudo port select --set ipython py27-ipython\n",
     "  ```\n",
     "\n",
     "Make sure that your `$PATH` has `/opt/local/bin` before `/usr/bin` so you pick up the version of python you just installed.\n",