Update Sicherman Dice.ipynb

ipynb/Sicherman Dice.ipynb

@@ -13,7 +13,7 @@
    "source": [
     "# Sicherman Dice\n",
     "\n",
-    "<span style=\"background-color:#f6f6f6\">Note: This notebook takes the form of a conversation between two problem solvers, *Ali* and ***Bo***. Also note, for those who are not native speakers of English: \"dice\" is the plural form; \"die\" is the singular.</span>\n",
+    "> Note: This notebook takes the form of a conversation between two problem solvers, *Ali* and ***Bo***. Also note, for those who are not native speakers of English: \"dice\" is the plural form; \"die\" is the singular.\n",
     "\n",
     "Ali: Huh. <a href=\"http://wordplay.blogs.nytimes.com/2014/06/16/dice-3/\">This</a> is interesting.  You know how in many games, such as craps or Monopoly, you roll two dice and add them up. Only the sum matters, not what number either of the individual dice shows.\n",
     "\n",