docs(uat): update README.md files by adding Generate documentation

uat/README.md

@@ -177,6 +177,8 @@ mvn javadoc:javadoc
 ```
 The main html-file will be located in each module by path **target/site/apidocs/index.html**
 
+See individual README.md files for Python and C clients.
+
 ## Limitations
 MQTT clients based on IoT Device SDK for Java v2, mosquitto C, Paho Java, Paho Python do no provide API to get information from PUBREC/PUBREL/PUBCOMP packages used when messages published with QoS 2.
 

uat/custom-components/client-mosquitto-c/README.md

@@ -4,7 +4,7 @@ MQTT 3.1.1/5.0 client for tests based on C mosquitto library
 
 ## Install requirements for native build
 ```bash
-sudo apt-get install -y build-essential gcc cmake git autoconf libtool pkg-config libmosquitto-dev
+sudo apt-get install -y build-essential gcc cmake git autoconf libtool pkg-config libmosquitto-dev doxygen
 ```
 Note: required version 2.0 or above of mosquitto
 
@@ -68,3 +68,19 @@ In Mosquitto API mosquitto_unsubscribe_v5_callback_set() callback does not provi
 
 4. Windows implementation
 mosquitto library can build on Windows but miss threaded interface and can works only in synchronous mode. That brokes logic of gRPC requests and client control.
+
+
+## Generate documentation
+
+Install doxygen
+
+```bash
+apt-get install -y doxygen
+```
+
+Run command
+```bash
+doxygen
+```
+
+Directory "docs" with the html and latex documentation will be generated.