fixed font tag in text block

sql_injection/sql_injection.ipynb

@@ -894,7 +894,8 @@
       "<div style=\"float: left; padding:10px;\"><img src=\"files/images/hilarious.jpg\" width=\"400px\"></div>\n",
       "<font size=4>\n",
       "The results above are a mixed bag of both 'legit' and 'malicious'. As we'd expect ('Punctuation') can't really be used as a 'signature' to effectively differentiate malicious sql statements. However, it's cool that the data transformation into the parsed tokens helps us generalize and find interesing malicious patterns. \n",
-      "<br><br>So even though these individual features can't be used to differentiate.. when we build a 'feature vector' of a set of features, machine learning algorithms can use those vectors to build non-linear functional decision boundaries in multi-dimensional spaces (and we laugh at this point because it's hard to take yourself serious after saying a bunch of fancy stuff...). BTW the image is a total non sequitur."
+      "<br><br>So even though these individual features can't be used to differentiate.. when we build a 'feature vector' of a set of features, machine learning algorithms can use those vectors to build non-linear functional decision boundaries in multi-dimensional spaces (and we laugh at this point because it's hard to take yourself serious after saying a bunch of fancy stuff...). BTW the image is a total non sequitur.\n",
+      "</font>"
      ]
     },
     {