nixos-manual(emacs): Fix typo reported by @rasendubi

Changed files
+4 -3
nixos
modules
services
editors
+4 -3
nixos/modules/services/editors/emacs.xml
···
<title>Installing <application>Emacs</application></title>
<para>
-
Emacs can installed in the normal way for Nix (see <xref
-
linkend="sec-package-management" />). In addition, a NixOS
-
<emphasis>service</emphasis> can be enabled.
+
Emacs can be installed in the normal way for Nix (see
+
<xref linkend="sec-package-management" />).
+
In addition, a NixOS <emphasis>service</emphasis>
+
can be enabled.
</para>
<section>