Update micronaut-libraries.adoc

Author: musketyr

docs/guide/src/docs/asciidoc/micronaut-libraries.adoc

@@ -54,6 +54,14 @@ Micronaut NewRelic library helps to send the custom events to https://newrelic.c
 
 https://agorapulse.github.io/micronaut-newrelic/[Read more]
 
+
+[[_micronaut_permmissions]]
+== Micronaut Permissions
+
+Micronaut Permissions provides a lightweight library to declare object level permissions in Micronaut which can be declared on any service and which are not limited to HTTP environment.
+
+https://agorapulse.github.io/micronaut-permmissions/[Read more]
+
 [[_micronaut_recurly]]
 == Micronaut Recurly