doc/RELEASING.md: Apply more formatting fixes

doc/RELEASING.md

@@ -21,10 +21,7 @@ Prepare and commit files
   the release version/date.
 - Update `configure.ac` and `NP-VERSION-GEN` with new version.
 - Update `AUTHORS` if there are new team members.
-- Update `THANKS.in`:
-
-        tools/update-thanks
-
+- Update `THANKS.in` using `tools/update-thanks`.
 - Commit the results:
 
         git commit configure.ac NP-VERSION-GEN AUTHORS THANKS.in
@@ -80,13 +77,13 @@ Announce new release
 
 - In the site.git repository,
 
-    - create `web/input/news/release-2-3.md`
-    - update the `plugins_release` version in `web/macros.py`
-    - commit and push the result:
+    - Create `web/input/news/release-2-3.md`.
+    - Update the `plugins_release` version in `web/macros.py`.
+    - Commit and push the result:
 
-        git add web/input/news/release-2-3.md
-        git commit web/input/news/release-2-3.md web/macros.py
-        git push origin master
+            git add web/input/news/release-2-3.md
+            git commit web/input/news/release-2-3.md web/macros.py
+            git push origin master
 
 - Post an announcement on (at least) the following mailing lists: