Fix spelling and grammar in code comments and documentation
diff --git a/Misc/HISTORY b/Misc/HISTORY
index 88cb286..9655d4c 100644
--- a/Misc/HISTORY
+++ b/Misc/HISTORY
@@ -2194,7 +2194,7 @@
   NULL).
 
 - Issue #10829: Refactor PyUnicode_FromFormat(), use the same function to parse
-  the format string in the 3 steps, fix crashs on invalid format strings.
+  the format string in the 3 steps, fix crashes on invalid format strings.
 
 - Issue #13007: whichdb should recognize gdbm 1.9 magic numbers.