docs: Use the same term for dynamo base image across code snippets and text (#670)

Signed-off-by: Maksim Khadkevich <mkhadkevich@nvidia.com>

docs/guides/dynamo_deploy.md

@@ -125,7 +125,7 @@ Follow these steps to containerize and deploy your inference pipeline:
 cd $PROJECT_ROOT/examples/hello_world
 
 # Set runtime image name
-export DYNAMO_IMAGE=<dynamo_runtime_image_name>
+export DYNAMO_IMAGE=<dynamo_base_image>
 
 # Build and containerize the Frontend service
 dynamo build --containerize hello_world:Frontend