fix file name (elastic#129883) (elastic#129940)

* fix file name

* Update docs/changelog/129883.yaml

* Delete docs/changelog/129883.yaml

Author: ankit--sethi

libs/entitlement/README.md

@@ -35,7 +35,7 @@ NotEntitledException: component [(server)], module [org.apache.lucene.misc], cla
 
 ### How to add an Elasticsearch module/plugin policy
 
-A policy is defined in an `entitlements-policy.yaml` file within an Elasticsearch module/plugin under `src/main/plugin-metadata`. Policy files contain lists of entitlements that should be allowed, grouped by Java module name, which acts as the policy scope. For example, the `transport-netty4` Elasticsearch module's policy file contains an entitlement to accept `inbound_network` connections, limited to the `io.netty.transport` and `io.netty.common` Java modules.
+A policy is defined in an `entitlement-policy.yaml` file within an Elasticsearch module/plugin under `src/main/plugin-metadata`. Policy files contain lists of entitlements that should be allowed, grouped by Java module name, which acts as the policy scope. For example, the `transport-netty4` Elasticsearch module's policy file contains an entitlement to accept `inbound_network` connections, limited to the `io.netty.transport` and `io.netty.common` Java modules.
 
 Elasticsearch modules/plugins that are not yet modularized (i.e. do not have `module-info.java`) will need to use single `ALL-UNNAMED` scope. For example, the `reindex` Elasticsearch module's policy file contains a single `ALL-UNNAMED` scope, with an entitlement to perform `outbound_network`; all code in `reindex` will be able to connect to the network. It is not possible to use the `ALL-UNNAMED` scope for modularized modules/plugins.