pw_log: Fix typo in docs

This commit fixes a typo in the pw_log docs file.

Change-Id: I8322db55112627580c5c9482ed30f7a2b8bb617a
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/98265
Commit-Queue: Brandon Vu <brandonvu@google.com>
Reviewed-by: Alexei Frolov <frolv@google.com>
Pigweed-Auto-Submit: Brandon Vu <brandonvu@google.com>
diff --git a/pw_log/docs.rst b/pw_log/docs.rst
index b3eac43..b63b566 100644
--- a/pw_log/docs.rst
+++ b/pw_log/docs.rst
@@ -158,7 +158,7 @@
 behavior of ``pw_log`` statements for each C or C++ source file. To override
 these macros, add ``#define`` statements for them before including headers.
 
-The option macro definitions must be visibile to ``pw_log/log.h`` the first time
+The option macro definitions must be visible to ``pw_log/log.h`` the first time
 it is included. To handle potential transitive includes, place these
 ``#defines`` before all ``#include`` statements. This should only be done in
 source files, not headers. For example: