Correct XML doc of Volatile.WriteBarrier() (#115803)

Author: tfenise

src/libraries/System.Private.CoreLib/src/System/Threading/Volatile.cs

@@ -239,7 +239,7 @@ public static void Write<T>([NotNullIfNotNull(nameof(value))] ref T location, T
         /// <summary>
         /// Synchronizes memory access as follows:
         /// The processor that executes the current thread cannot reorder instructions in such a way that memory writes after
-        /// the call to <see cref="WriteBarrier"/> execute before memory accesses that follow the call to <see cref="WriteBarrier"/>.
+        /// the call to <see cref="WriteBarrier"/> execute before memory accesses that precede the call to <see cref="WriteBarrier"/>.
         /// </summary>
         [Intrinsic]
         public static void WriteBarrier() => WriteBarrier();