update pkgdev config, add comments

.config/pkgdev/pkgdev.conf

@@ -1,6 +1,7 @@
 [DEFAULT]
-commit.scan = true
-commit.ask = true
-commit.signoff = true
+commit.scan = true    # run `pkgcheck scan` before committing
+commit.ask = true     # allow creating commits with QA errors
+commit.signoff = true # add Signed-off-by tag
+push.ask = true       # allow pushing commits with QA errors
 
 # vim: set ft=toml: