docs(jans-cedarling): add docs for PolicyStore

Signed-off-by: Oleh Bohzok <olehbozhok@gmail.com>

jans-cedarling/cedarling/src/models/policy_store.rs

@@ -2,14 +2,15 @@ use std::collections::HashMap;
 
 use crate::init::cedar_schema::parse_cedar_schema;
 
+/// PolicyStore contains all the data the Cedarling needs to verify JWT tokens and evaluate policies
 #[derive(Debug, serde::Deserialize)]
 pub struct PolicyStore {
     #[serde(deserialize_with = "parse_cedar_schema")]
     pub schema: cedar_policy::Schema,
 }
 
+/// PolicyStoreSet it is a store for `PolicyStore` accessible by key.
 #[derive(Debug, serde::Deserialize)]
-
 pub(crate) struct PolicyStoreSet {
     #[serde(flatten)]
     pub policy_stores: HashMap<String, PolicyStore>,