dnf changelog: add page (#17164)

Co-authored-by: Managor <42655600+Managor@users.noreply.github.com>

pages/linux/dnf-changelog.md

@@ -0,0 +1,26 @@
+# dnf changelog
+
+> View the changelogs for a given package.
+> Not default to `dnf` but supported via `dnf-plugins-core`.
+> See also: `dnf`.
+> More information: <https://dnf-plugins-core.readthedocs.io/en/latest/changelog.html>.
+
+- View all changelogs for a given package:
+
+`dnf changelog {{package}}`
+
+- View all changelogs for a given package after a specified date:
+
+`dnf changelog --since {{date}} {{package}}`
+
+- View the last `n` number of changelogs for a given package:
+
+`dnf changelog --count {{number}} {{package}}`
+
+- Show only new items for upgradeable packages:
+
+`dnf changelog --upgrades {{package}}`
+
+- Display help:
+
+`dnf changelog --help-cmd`