Fixed typo in docstring (TheAlgorithms#4326)

OliverDew · shermanhui · commit f9e9ea9f869c · 2021-10-21T17:32:02.000-07:00
diff --git a/strings/lower.py b/strings/lower.py
@@ -1,6 +1,6 @@
 def lower(word: str) -> str:
     """
-    Will convert the entire string to lowecase letters
+    Will convert the entire string to lowercase letters
 
     >>> lower("wow")
     'wow'
