[NFC][libc++] Fixes a documentation typo.

GitOrigin-RevId: b15c54ad687a1d906ee22acba0104c2f3f0dd2f9
diff --git a/docs/RangesStatus.rst b/docs/RangesStatus.rst
index 6f8dcfc..76549f5 100644
--- a/docs/RangesStatus.rst
+++ b/docs/RangesStatus.rst
@@ -35,7 +35,7 @@
 Misc. Items and TODOs
 ====================================
 
-(Note: files with required updates will contain the TODO at the begining of the list item
+(Note: files with required updates will contain the TODO at the beginning of the list item
 so they can be easily found via global search.)
 
     * TODO(XX_SPACESHIP_CONCEPTS): when spaceship support is added to various STL types, we need to update some concept tests.