Update documentation for added RIC state

RIC state has been added to the RicInfo in the policy agent NBI.

Change-Id: I455edda16429fac5408ca7bd68549e5d223e9151
Issue-ID: NONRTRIC-164
Signed-off-by: elinuxhenrik <henrik.b.andersson@est.tech>
diff --git a/policy-agent/docs/api.yaml b/policy-agent/docs/api.yaml
index 306b15a..f42c3e0 100644
--- a/policy-agent/docs/api.yaml
+++ b/policy-agent/docs/api.yaml
@@ -581,6 +581,9 @@
       ricName:
         type: string
         description: identity of the ric
+      state:
+        type: string
+        description: state info
     title: RicInfo
   ServiceRegistrationInfo:
     type: object