Update README.md

Co-authored-by: 조광희/SmartThings개발그룹(무선)/Principal Engineer/삼성전자 <kwanghui.cho@samsung.com>

Author: hongye-samsung

README.md

@@ -75,7 +75,7 @@ Basically, this release builds on the environments of chipset vendor's SDKs.
      ex) python setup.py esp8266
      ex) python setup.py esp32
      ex) python setup.py esp32s2
-     ex) python setup.py esp32c2
+     ex) python setup.py esp32c3
      ```
 
 2. Check the build configuration of a sample device application. If you want to use specific build options, you can directly modify the build configuration file(e.g. sdkconfig, sdkconfig.h) at the root directory of a sample device application. On the Espressif chipset, you can additionally use the `menuconfig` option to configure them.