fix(curriculum): fixed typo in workshop medical data validator step 17 (freeCodeCamp#61767)

Author: clarencepenz

curriculum/challenges/english/25-front-end-development/workshop-medical-data-validator/6846ac424529900e7327d326.md

@@ -14,7 +14,7 @@ integers = set([3, 5, 1, 2, 1, 3, 4])
 print(integers) # {1, 2, 3, 4, 5}
 ```
 
-You're going to use a set to ensure that each dictionary does not contain extra or mispelled keys.
+You're going to use a set to ensure that each dictionary does not contain extra or misspelled keys.
 
 Use the `set()` constructor to create a set from the following list of keys that each dictionary should have: `['patient_id', 'age', 'gender', 'diagnosis', 'medications', 'last_visit_id']`. Assign the set to a variable named `key_set`.