Fix typo

with the love from codespell

src/sample.conf

@@ -12,7 +12,7 @@
 # runlevel.  Finit does not restart them when they exit.
 #
 # - run     : wait for completion before continuing with next stanza
-# - task    : like run but started in background, parallell with other stanzas
+# - task    : like run but started in background, parallel with other stanzas
 # - service : supervised daemon, run in foreground, restarted if it crashes
 #
 # The env: is an optional path to a file with environment variables to