rfc, future-work: move around paragraph.

Author: Centril

text/0000-future-work.md

@@ -87,13 +87,13 @@ RFC template *after* the section *Unresolved questions*:
 > This is also a good place to "dump ideas", if they are out of scope for the
 > RFC you are writing but otherwise related.
 >
+> If you have tried and cannot think of any future work, you may simply state
+> that you cannot think of anything.
+>
 > Note that having something written down in the future-work section is not
 > a reason to accept the current or a future RFC; such notes should be in the
 > section on motivation or rationale in this or subsequent RFCs.
 > The section merely provides additional information.
->
-> If you have tried and cannot think of any future work, you may simply state
-> that you cannot think of anything.
 
 # Drawbacks
 [drawbacks]: #drawbacks