man: reword sd-hibernate-resume description and add link

"each device" was suggesting that this service might be instantiated
multiple times. "hibernation resume" was too jargon-y.

diff --git a/man/systemd-hibernate-resume@.service.xml b/man/systemd-hibernate-resume@.service.xml
index 9b188b0d964fe90a50b17a5bb28f4417e57a1499..30bfd8810150b0664d80af24bf3b9e12978de87a 100644 (file)
--- a/man/systemd-hibernate-resume@.service.xml
+++ b/man/systemd-hibernate-resume@.service.xml
@@ -54,13 +54,14 @@
         <refsect1>
                 <title>Description</title>
 
-                <para><filename>systemd-hibernate-resume@.service</filename> is a
-                service that initiates hibernation resume from a device
-                containing the resume image. It is instantiated for each
-                device that is configured for resuming from.</para>
+                <para><filename>systemd-hibernate-resume@.service</filename>
+                initiates the resume from hibernation. It is
+                instantiated with the device to resume from as the
+                template argument.</para>
 
                 <para><filename>systemd-hibernate-resume</filename> only supports
-                the in-kernel hibernation implementation, known as swsusp.
+                the in-kernel hibernation implementation, known as
+                <ulink url="https://www.kernel.org/doc/Documentation/power/swsusp.txt">swsusp</ulink>.
                 Internally, it works by writing the major:minor of specified
                 device node to <filename>/sys/power/resume</filename>.</para>