README.md in junoser-0.3.12 vs README.md in junoser-0.3.13

@@ -54,9 +54,38 @@
 set protocols bgp group ebgp-peers neighbor 192.0.2.2
 ```
 
 Use ```junoser -s``` to translate into structured form.
 
+## Updating parser for new directives
+
+From [Juniper
+website](https://support.juniper.net/support/downloads/), you can
+download the XSD schema for the version of JunOS you want to target:
+
+ - Junos XML API
+ - Select your version
+ - Application Tools
+ - XML Schema for Configurator Data
+
+Alternatively, you can retrieve the schema with Netconf:
+
+```zsh
+$ ssh -Csp 830 JUNOS netconf < example/get-schema.xml | sed -n '/^<xsd:schema/,/^<\/xsd:schema/p' > junos-XXX.xsd
+```
+
+Put it in `tmp/`, update `xsd_path` in `Rakefile` and run:
+
+```zsh
+$ bundle exec rake build:config build:rule
+```
+
+Alternatively, you may look in `example/` for some prebuilt rules
+file. If you want to use them, copy one to `tmp/rules.rb` and run:
+
+```zsh
+$ bundle exec rake build:rule
+```
 
 ## Contributing
 
 Please report issues or enhancement requests to [GitHub issues](https://github.com/codeout/junoser/issues).
 For questions or feedbacks write to my twitter @codeout.