Update getting-started.md (#3464)

* Update getting-started.md

Bump crds tag from v0.9.11 to v0.9.17

Signed-off-by: Saverio Proto <zioproto@gmail.com>

* Update docs/introduction/getting-started.md

Co-authored-by: Gustavo Fernandes de Carvalho <gusfcarvalho@gmail.com>
Signed-off-by: Saverio Proto <zioproto@gmail.com>

---------

Signed-off-by: Saverio Proto <zioproto@gmail.com>
Co-authored-by: Gustavo Fernandes de Carvalho <gusfcarvalho@gmail.com>

docs/introduction/getting-started.md

@@ -13,7 +13,7 @@ The default install options will automatically install and manage the CRDs as pa
 
 You can install those CRDs outside of `helm` using:
 ```bash
-kubectl apply -k "https://github.com/external-secrets/external-secrets//config/crds/bases?ref=v0.9.11"
+kubectl apply -k "https://github.com/external-secrets/external-secrets//config/crds/bases?ref=<replace_with_your_version>"
 ```
 
 Uncomment the relevant line in the next steps to disable the automatic install of CRDs.