Index: clang-tools-extra/docs/clang-tidy/checks/performance-inefficient-vector-operation.rst
===================================================================
--- clang-tools-extra/docs/clang-tidy/checks/performance-inefficient-vector-operation.rst
+++ clang-tools-extra/docs/clang-tidy/checks/performance-inefficient-vector-operation.rst
@@ -6,9 +6,9 @@
 Finds possible inefficient ``std::vector`` operations (e.g. ``push_back``,
 ``emplace_back``) that may cause unnecessary memory reallocations.
 
-When EnableProto, also finds calls that add element to protobuf repeated field
-in a loop without calling Reserve() before the loop. Calling Reserve() first
-can avoid unnecessary memory reallocations.
+It can also find calls that add element to protobuf repeated field in a loop
+without calling Reserve() before the loop. Calling Reserve() first can avoid
+unnecessary memory reallocations.
 
 Currently, the check only detects following kinds of loops with a single
 statement body:
@@ -58,3 +58,8 @@
 
    Semicolon-separated list of names of vector-like classes. By default only
    ``::std::vector`` is considered.
+
+.. option:: EnableProto
+   When non-zero, the check will also warn on inefficient operations for proto
+   repeated fields. Otherwise, the check only warns on inefficient vector
+   operations. Default is `0`.