[PR #8792/3607e3d0 backport][stable-8] pipx: add doc example (#8800)

pipx: add doc example (#8792)

(cherry picked from commit 3607e3d012)

Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>

plugins/modules/pipx.py

@@ -157,6 +157,17 @@ EXAMPLES = '''
   community.general.pipx:
     name: pycowsay
     state: absent
+
+- name: Install multiple packages from list
+  vars:
+    pipx_packages:
+      - pycowsay
+      - black
+      - tox
+  community.general.pipx:
+    name: "{{ item }}"
+    state: latest
+  with_items: "{{ pipx_packages }}"
 '''