Update descriptions and manpage

Reflect coping with different message queues.

Cargo.toml

@@ -6,7 +6,7 @@ edition = "2018"
 repository = "https://git.onders.org/finga/mqrs"
 license = "GPL-3.0-or-later"
 readme = "README.md"
-description = "A CLI program for interacting with Posix Message Queues."
+description = "A CLI program for interacting with different kinds of message queues."
 keywords = ["message_queue", "mq", "mqueue", "queue"]
 categories = ["command-line-utilities"]
 
@@ -24,7 +24,7 @@ sysvmq = { path = "sysvmq" }
 members = ["sysvmq"]
 
 [package.metadata.deb]
-extended-description = "`mqrs` is a small cli application to handle POSIX message queues."
+extended-description = "`mqrs` is a small cli application to handle different kinds of message queues."
 assets = [
        ["target/release/mqrs", "usr/bin/", "755"],
        ["README.md", "usr/share/doc/cargo-deb/README.md", "644"],

mqrs.1

@@ -319,7 +319,7 @@ Id of the queue
 Key of the queue
 .RE
 .SH SEE ALSO
-mq_overview(7)
+mq_overview(7), sysvipc(7)
 .SH BUGS
 No known bugs.
 .SH AUTHOR