Fixed mess created with merging in main and having merge conflicts.

Author: BethanyG

reference/concept-exercise-mapping.md

@@ -778,7 +778,6 @@ See the [**Python Exercises**][python-exercises] page for committed/planned on w
 | \*no stand-alone                    | [type conversion][type-conversion]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | NA                                                                                                                                                                                                                                       | Multiple                                                                                                                         | Multiple                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Multiple                                                                                                          | NA                       |
 | \*no stand-alone                    | [Immutability in Python][immutability]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | NA                                                                                                                                                                                                                                       | Multiple                                                                                                                         | Multiple                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Multiple                                                                                                          | NA                       |
 
-
 _Concepts flagged as **general** are broad enough that we are questioning if they need a specific concept exercise._
 <br>
 _Concepts flagged **no stand alone** are explained/utilized across multiple concept exercises._