Adding missing changes from v1alpha1 and v1beta1

Signed-off-by: Gustavo Carvalho <gustavo.carvalho@container-solutions.com>

docs/guides-templating.md

@@ -96,7 +96,7 @@ In addition to that you can use over 200+ [sprig functions](http://masterminds.g
 
 ## Migrating from v1
 
-You have to opt-in to use the new engine version by specifying `template.engineVersion=v2`:
+If you are still using `v1alpha1`, You have to opt-in to use the new engine version by specifying `template.engineVersion=v2`:
 
 ```yaml
 apiVersion: external-secrets.io/v1alpha1

docs/provider-aws-parameter-store.md

@@ -54,7 +54,7 @@ Consider the following JSON object that is stored in the Parameter Store key `my
 
 This is an example on how you would look up nested keys in the above json object:
 ``` yaml
-apiVersion: external-secrets.io/v1alpha1
+apiVersion: external-secrets.io/v1beta1
 kind: ExternalSecret
 metadata:
   name: example

docs/provider-webhook.md

@@ -8,7 +8,7 @@ First, create a SecretStore with a webhook backend.  We'll use a static user/pas
 
 ```yaml
 {% raw %}
-apiVersion: external-secrets.io/v1alpha1
+apiVersion: external-secrets.io/v1beta1
 kind: SecretStore
 metadata:
   name: webhook-backend
@@ -43,7 +43,7 @@ NB: This is obviously not practical because it just returns the key as the resul
 Now create an ExternalSecret that uses the above SecretStore:
 
 ```yaml
-apiVersion: external-secrets.io/v1alpha1
+apiVersion: external-secrets.io/v1beta1
 kind: ExternalSecret
 metadata:
   name: webhook-example
@@ -83,7 +83,7 @@ Each secret has a `name` property which determines the name of the object in the
 ### All Parameters
 
 ```yaml
-apiVersion: external-secrets.io/v1alpha1
+apiVersion: external-secrets.io/v1beta1
 kind: ClusterSecretStore
 metadata:
   name: statervault

docs/provider-yandex-lockbox.md

@@ -26,7 +26,7 @@ kubectl create secret generic yc-auth --from-file=authorized-key=authorized-key.
 ```
 * Create a [SecretStore](../api-secretstore/) pointing to `yc-auth` k8s secret:
 ```yaml
-apiVersion: external-secrets.io/v1alpha1
+apiVersion: external-secrets.io/v1beta1
 kind: SecretStore
 metadata:
   name: secret-store
@@ -63,7 +63,7 @@ yc lockbox secret list-access-bindings --name lockbox-secret
 ```
 * Create an [ExternalSecret](../api-externalsecret/) pointing to `secret-store` and `lockbox-secret`:
 ```yaml
-apiVersion: external-secrets.io/v1alpha1
+apiVersion: external-secrets.io/v1beta1
 kind: ExternalSecret
 metadata:
   name: external-secret