Update Readme (#317) (#318)

(cherry picked from commit b2af7b2)

Signed-off-by: Eugenio Collado <eugeniocollado@eprosima.com>
Co-authored-by: EugenioCollado <121509066+EugenioCollado@users.noreply.github.com>

Author: mergify[bot]

README.md

@@ -3,7 +3,9 @@
 
 # micro-ROS component for ESP-IDF
 
-This component has been tested in ESP-IDF v4.4, and v5.2 with ESP32, ESP32-S2, ESP32-S3, ESP32-C3 and ESP32-C6.
+This component has been tested in ESP-IDF v5.2 with ESP32, ESP32-S2, ESP32-S3, ESP32-C3 and ESP32-C6.
+
+_Note: ESP-IDF v4.4 is supported only in ROS 2 Humble and Jazzy due to Python version incompatibilities._
 
 ## Dependencies