Update README.md (#26759)

diff --git a/examples/all-clusters-app/esp32/README.md b/examples/all-clusters-app/esp32/README.md
index 6cb3f90..d781702 100644
--- a/examples/all-clusters-app/esp32/README.md
+++ b/examples/all-clusters-app/esp32/README.md
@@ -1,4 +1,4 @@
-# CHIP ESP32 All Clusters Example
+# Matter ESP32 All Clusters Example
 
 A prototype application that demonstrates device commissioning and cluster
 control.