Update -h flag documentation in getting-started (#32480)

doc/src/manual/getting-started.md

@@ -94,7 +94,7 @@ julia [switches] -- [programfile] [args...]
 |Switch                                 |Description|
 |:---                                   |:---|
 |`-v`, `--version`                      |Display version information|
-|`-h`, `--help`                         |Print this message|
+|`-h`, `--help`                         |Print command-line options (this message).|
 |`--project[={<dir>\|@.}]`              |Set <dir> as the home project/environment. The default @. option will search through parent directories until a Project.toml or JuliaProject.toml file is found.|
 |`-J`, `--sysimage <file>`              |Start up with the given system image file|
 |`-H`, `--home <dir>`                   |Set location of `julia` executable|