docs: fix samples

README.md

@@ -27,9 +27,7 @@ Dependencies:
 ## Installing
 
 ```sh
-helm repo add forgejo-charts https://forgejo-contrib.codeberg.page/forgejo-helm/
-helm repo update
-helm install forgejo forgejo-charts/forgejo
+helm install oci://codeberg.org/forgejo-contrib/forgejo
 ```
 
 When upgrading, please refer to the [Upgrading](#upgrading) section at the bottom
@@ -377,6 +375,7 @@ You can interact with the postgres settings as displayed in the following exampl
 
 ```yaml
 postgresql:
+  primary:
     persistence:
       enabled: true
       existingClaim: MyAwesomeGiteaPostgresClaim
@@ -387,6 +386,7 @@ You can interact with the postgres settings as displayed in the following exampl
 
 ```yaml
 mysql:
+  primary:
     persistence:
       enabled: true
       existingClaim: MyAwesomeGiteaMysqlClaim
@@ -467,7 +467,6 @@ stringData:
 gitea:
   ldap:
     - existingSecret: gitea-ldap-secret
-        ...
 ```
 
 ⚠️ Some options are just flags and therefore don't have any values. If they
@@ -522,7 +521,6 @@ gitea:
   oauth:
     - name: 'MyAwesomeGiteaOAuth'
       existingSecret: gitea-oauth-secret
-        ...
 ```
 
 ### Metrics and profiling