Merge pull request #2 from CogWorksBWSI/davidmascharka-patch-1

Update HW_ciphers.ipynb

Author: rsokl

ciphers/HW_ciphers.ipynb

@@ -139,7 +139,7 @@
     "Going through the keyphrase we pull out\n",
     "\n",
     "```\n",
-    "beavrwrksicl\n",
+    "beavrwoksicl\n",
     "```\n",
     "\n",
     "Note that each letter is unique, and is in the order we saw it in the keyphrase. The second 'e' we see in 'beaverworks' is simply ignored. Now all we have to do is go through the alphabet and append all the letters that we don't already have. This gives us the following mapping:\n",