The directory ~/anatomy-11ln36p is where the Market's manifests will live. Write the first one, web.yaml:

apiVersion: v1
kind: Pod
metadata:
  name: market-web
  labels:
    app: market-web
spec:
  containers:
    - name: web
      image: nginx:1.27

Open the editor, paste the manifest, and save:

vim ~/anatomy-11ln36p/web.yaml

Then apply the file into anatomy-11ln36p and check the Pod with kubectl get pods -n anatomy-11ln36p. Apply the same file once more and read what kubectl says.