pw_allocator: Fix typo

Change-Id: I183c30398d46c449934020b1863cca5873473e46
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/189717
Commit-Queue: Auto-Submit <[email protected]>
Presubmit-Verified: CQ Bot Account <[email protected]>
Pigweed-Auto-Submit: Alexei Frolov <[email protected]>
Reviewed-by: Ted Pudlik <[email protected]>

pw_allocator/public/pw_allocator/allocator_metric_proxy.h

@@ -39,7 +39,7 @@ class AllocatorMetricProxyImpl : public AllocatorWithMetrics<MetricsType> {
   constexpr explicit AllocatorMetricProxyImpl(metric::Token token)
       : allocator_(nullptr), metrics_(token) {}
 
-  /// Non-constexpr constructor that autmatically invokes `Init`.
+  /// Non-constexpr constructor that automatically invokes `Init`.
   AllocatorMetricProxyImpl(metric::Token token, Allocator& allocator)
       : AllocatorMetricProxyImpl(token) {
     Init(allocator);