feat: make 3s the default idle-pause for more readable demo recordings (#288)

- following up with the discussion on
#267 (comment)
- adding now 3s default idle-pause

---------

Signed-off-by: Sven Kanoldt <sven@d34dl0ck.me>

Author: sassman

README.md

@@ -166,7 +166,7 @@ Options:
   -s, --start-pause <s | ms | m>  to specify the pause time at the start of the animation, that time
                                   the gif will show the first frame
   -i, --idle-pause <s | ms | m>   to preserve natural pauses up to a maximum duration by overriding
-                                  idle detection. Can enhance readability.
+                                  idle detection. Can enhance readability. [default: 3s]
   -o, --output <file>             to specify the output file (without extension) [default: t-rec]
   -h, --help                      Print help
   -V, --version                   Print version
@@ -185,6 +185,8 @@ t-rec --idle-pause 1s        # Show 1 second of unchanged content before optimiz
 t-rec --idle-pause 500ms     # Show 500ms of idle time
 ```
 
+NOTE: The default value is `3s`.
+
 ### Enable shadow border decor
 
 In order to enable the drop shadow border decor you have to pass `-d shadow` as an argument. If you only want to change

src/cli.rs

@@ -110,6 +110,7 @@ pub fn launch() -> ArgMatches {
                 .required(false)
                 .short('i')
                 .long("idle-pause")
+                .default_value("3s")
                 .help("to preserve natural pauses up to a maximum duration by overriding idle detection. Can enhance readability."),
         )
         .arg(