Use release manifest in installation section (#9)

Author: creydr

README.md

@@ -16,20 +16,7 @@ A Kubernetes operator for managing serverless functions using the `func` CLI. Th
 Deploy the operator to your cluster:
 
 ```bash
-# Deploy the operator
-make deploy IMG=ghcr.io/functions-dev/func-operator:latest
-```
-
-**⚠️ Hint**: We don't have any major release yet, therefore the `latest` tag reflects the changes from the `main` branch.
-
-Or use the pre-built installer:
-
-```bash
-# Generate installer manifests
-make build-installer IMG=ghcr.io/functions-dev/func-operator:latest
-
-# Apply the installer
-kubectl apply -f dist/install.yaml
+kubectl apply -f https://github.com/functions-dev/func-operator/releases/latest/download/func-operator.yaml
 ```
 
 ## Usage