typo

HW1.ipynb

@@ -115,7 +115,7 @@
             "\n", 
             "The [Real Clear Politics](http://www.realclearpolitics.com) website archives many political polls. In addition, they combine related polls to form an \"RCP average\" estimate of public opinion over time. For example, the chart on [this page](http://www.realclearpolitics.com/epolls/2012/president/us/general_election_romney_vs_obama-1171.html) shows historical polling data for the Obama-Romney presidential race. The chart is an average of the polling data table below the chart.\n", 
             "\n", 
-            "The data used to generate plots like this are stored as XML pages, whith URLs like:\n", 
+            "The data used to generate plots like this are stored as XML pages, with URLs like:\n", 
             "\n", 
             "http://charts.realclearpolitics.com/charts/[id].xml\n", 
             "\n", 
@@ -639,7 +639,7 @@
             "\n", 
             "def error_data(url):\n", 
             "    \"\"\"\n", 
-            "    Given a Governor rade URL, download the poll data and race result,\n", 
+            "    Given a Governor race URL, download the poll data and race result,\n", 
             "    and construct a DataFrame with the following columns:\n", 
             "    \n", 
             "    candidate: Name of the candidate\n",