add more help in the Cli

Signed-off-by: Guillaume W. Bres <[email protected]>

rinex-cli/src/cli/positioning.rs

@@ -16,9 +16,10 @@ Use this mode to resolve Position Velocity and Time (PVT) solutions from one GNS
             .action(ArgAction::Append)
             .help("Pass a Position Solver configuration file (JSON). See --help.")
             .long_help("
+Read the [https://github.com/georust/rinex/wiki/Positioning] tutorial.
 Use [https://github.com/georust/rinex/rinex-cli/config.rtk] as a starting point.
 [https://docs.rs/gnss-rtk/latest/gnss_rtk/prelude/struct.Config.html] is the structure to represent in JSON.
-Our Wiki pages contains several examples."))
+"))
         .arg(Arg::new("gpx")
             .long("gpx")
             .action(ArgAction::SetTrue)
@@ -32,18 +33,14 @@ Our Wiki pages contains several examples."))
             .long("cggtts")
             .action(ArgAction::SetTrue)
             .help("Activate CGGTTS special solver. See --help.")
-            .long_help("In CGGTTS opmode, we're only interested in resolving the local offset to the constellation.
-Navigation mode is set to [TimeOnly] and we navigate using every single vehicle in sight fitting criteria. 
-CGGTTS opmode is therefore more demanding as it runs the algorithm many more times than regular PPP.
-The PVT solutions are then formatted as a CGGTTS file which is used to compare remote clocks to one another, from a common GNSS constellation."))
+            .long_help("Refer to the [https://github.com/georust/rinex/wiki/CGGTTS] tutorial."))
         .arg(Arg::new("tracking")
             .long("trk")
             .short('t')
             .value_parser(value_parser!(Duration))
             .action(ArgAction::Set)
             .help("CGGTTS custom tracking duration.
-Otherwise, the default tracking duration is used.
-Refer to []"))
+Otherwise, the default tracking duration is used. Refer to [https://docs.rs/cggtts/latest/cggtts/track/struct.Scheduler.html]."))
         .arg(Arg::new("lab")
             .long("lab")
             .action(ArgAction::Set)