doc(version): extensively revamp documentation for version subcommands

Enhanced and overhauled the documentation for the 'version' subcommand.
The improvements include comprehensive details on the subcommand's
behavior, usage, and a variety of scenarios it handles.

Added a central section within the pkgctl-version manpage that documents
the nvchecker configuration and rules.

Component: pkgctl version
Singled-off-by: Levente Polyak <anthraxx@archlinux.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/lib/version.sh b/src/lib/version.sh
index 4340fca..ac810ae 100644
--- a/src/lib/version.sh
+++ b/src/lib/version.sh
@@ -15,11 +15,11 @@ pkgctl_version_usage() {
     cat <<- _EOF_
 		Usage: ${COMMAND} [COMMAND] [OPTIONS]
 
-		Package version related commands.
+		Check and manage package versions against upstream.
 
 		COMMANDS
-		    check      Check if there is a newer version availble
-		    upgrade    Upgrade the PKGBUILD according to the latest available upstream version
+		    check      Compares local package versions against upstream
+		    upgrade    Adjust the PKGBUILD to match the latest upstream version
 
 		OPTIONS
 		    -h, --help    Show this help text