Merge #2161

2161: fix typo r=mergify[bot] a=erikvimz

## What type of PR?

documentation

## What does this PR do?

fixes a typo

Co-authored-by: Erik Kralj <erik@kralj.dev>

docs/compose/setup.rst

@@ -65,7 +65,7 @@ You can find those addresses by running the following:
           TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
 
 If the address is not configured directly (NAT) on any of the network interfaces or if
-you would simply like the server to listen on all interfaces, use ``0.0.0.0`` and ``::``. Note that running is this mode is not supported and can lead to `issues`_.
+you would simply like the server to listen on all interfaces, use ``0.0.0.0`` and ``::``. Note that running in this mode is not supported and can lead to `issues`_.
 
 .. _issues: https://github.com/Mailu/Mailu/issues/641