archive: better expose requirements (#5392)

* Better expose requirements.

* Move sentence back to notes.

* Update plugins/modules/files/archive.py

Co-authored-by: Maxwell G <gotmax@e.email>

* Break line.

Co-authored-by: Maxwell G <gotmax@e.email>
(cherry picked from commit a023f2a)

plugins/modules/files/archive.py

@@ -65,13 +65,15 @@
     type: bool
     default: no
 notes:
-    - Requires tarfile, zipfile, gzip and bzip2 packages on target host.
-    - Requires lzma or backports.lzma if using xz format.
-    - Can produce I(gzip), I(bzip2), I(lzma) and I(zip) compressed files or archives.
+    - Can produce I(gzip), I(bzip2), I(lzma), and I(zip) compressed files or archives.
+    - This module uses C(tarfile), C(zipfile), C(gzip), and C(bz2) packages on the target host to create archives.
+      These are part of the Python standard library for Python 2 and 3.
+requirements:
+    - Requires C(lzma) (standard library of Python 3) or L(backports.lzma, https://pypi.org/project/backports.lzma/) (Python 2) if using C(xz) format.
 seealso:
-- module: ansible.builtin.unarchive
+    - module: ansible.builtin.unarchive
 author:
-- Ben Doherty (@bendoh)
+    - Ben Doherty (@bendoh)
 '''
 
 EXAMPLES = r'''