fix:typo

Author: liamjberrisford

individual_modules/software_development_best_practices/readable_code_and_documentation.ipynb

@@ -19,7 +19,7 @@
     "- Recognize different types of documentation and their purposes\n",
     "- Plan and create effective documentation for various audiences \n",
     "\n",
-    "## Introduction to Readable Cdoe \n",
+    "## Introduction to Readable Code \n",
     "Readable code is essential for effective programming and maintenance. It makes the code easier to understand, debug, extend, and share with others. These notes will guide you through understanding what makes code readable and how to apply these principles in practice.\n",
     "\n",
     "### Improving Code Readability\n",