update docs

README.md

@@ -9,8 +9,10 @@ Enables secret synchronization between two secret store services (e.g. between H
 - Hashicorp Vault
 - FileDir (store is a folder, secrets are plain unencrypted files)
 
-### Quick usage
-Synchronize specific secrets every hour between two Hashicorp Vault instance.
+### Examples
+
+<details>
+<summary>Synchronize specific secrets every hour between two Hashicorp Vault instance</summary>
 
 #### Define stores
 ```yaml
@@ -36,7 +38,7 @@ vault:
  token: "root"
 ```
 
-### Define sync strategy
+#### Define sync strategy
 ```yaml
 ### SyncJob: path/to/sync-job.yaml
 schedule: "@every 1h"
@@ -126,5 +128,7 @@ secret-sync --source path/to/vault-source.yaml \
 # Use --schedule "@every 1m" to override sync job file config.
 ```
 
+</details>
+
 ### Docs
 Check documentation and example usage at [DOCS](docs/).