README.md: include augeas plugin info and update build instructions

README.md

@@ -63,17 +63,20 @@ $ cmake -DSYSTEMD_IFINDEX=1 ..
 ```
 note: SYSTEMD_IFINDEX cmake flag is the index of the interface you wish to configure DNS on (to get a list of indexes for all interfaces, use: `ip link`)
 
-The default configuration builds the plugin as a stand-alone foreground application. To build the plugin as a shared object file for use with `sysrepo-plugind`, run the following instead:
-
+If augeas/augyang configuration is needed (only supported for `ntp` container and the `hostname` leaf node), the augeas specific plugin can be built by providing the CMake option:
 ```
-$ cmake -DPLUGIN=ON ..
+$ mkdir build
+$ cd build
+$ cmake -DSYSTEMD_IFINDEX=1 -DENABLE_AUGEAS_PLUGIN=ON ..
 ```
 
-Lastly, invoke the build and install using `make`:
+### Build artifacts
 
-```
-$ make -j$(nproc) install
-```
+Plugin will be built as a standalone application and also as a `sysrepo-plugind` module. For example, for the main ietf-system plugin there are two build artifacts:
+- **ietf-system-plugin**: standalone application
+- **libsrplg-ietf-system.so**: `sysrepo-plugind` module which exposes the plugin init and cleanup callbacks and can be installed by invoking the following command: `sysrepo-plugind -P libsrplg-ietf-system.so`
+
+### Sysrepo/YANG requirements
 
 The plugin requires the `iana-crypt-hash` and `ietf-system` YANG modules to be loaded into the Sysrepo datastore. This can be achieved by invoking the following commands: