Spotted typo

Author: liamjberrisford

individual_modules/introduction_to_unix/loop.ipynb

@@ -15,7 +15,7 @@
     "\n",
     "## Learning Objectives\n",
     "- Write a loop that applies one or more commands separately to each file in a set of files\n",
-    "- Trace the values taken on by a loop variable during executionion of the loop\n",
+    "- Trace the values taken on by a loop variable during execution of the loop\n",
     "- Explain the difference between a variables name and its value\n",
     "- Explain why spaces and some punctuation characters shouldn't be used in file names\n",
     "- Demonstrate how to see what commands have recently been executed\n",