Update low_context_sensitivity (#1970)

Corrected a Typo error on line 220

docs/project/principles/low_context_sensitivity.md

@@ -217,7 +217,7 @@ usability, consistency, or expressivity gains.
 
 Carbon [packages](/docs/design/code_and_name_organization/#packages) are
 designed to ensure all declared names belong to exactly one package and the
-compiler can enforcement Carbon's equivalent
+compiler can enforce Carbon's equivalent
 [one-definition rule (ODR)](https://en.wikipedia.org/wiki/One_Definition_Rule).
 This avoids an issue in C++ where the ODR is not reliably checked by the
 compiler, which can leave the correctness of programs dependent on both distant