mers_lib to 0.5.0, readme updated

mers_lib/examples/01_user_scripts.rs

@@ -35,23 +35,14 @@ fn main() -> Result<(), CheckError> {
     Ok(())
 }
 
+/// example 00
 fn parse_compile_check_run(src: String) -> Result<(Type, Data), CheckError> {
-    // prepare the string for parsing
     let mut source = Source::new_from_string(src);
-    // this is used for error messages
     let srca = Arc::new(source.clone());
-    // parse the code
     let parsed = parse(&mut source, &srca)?;
-    // get infos
     let (mut i1, mut i2, mut i3) = Config::new().bundle_std().infos();
-    // compile
     let compiled = parsed.compile(&mut i1, CompInfo::default())?;
-    // check (this step is optional, but if it is skipped when it would have returned an error, `run` will likely panic)
     let output_type = compiled.check(&mut i3, None)?;
-    // run
     let output_value = compiled.run(&mut i2);
-    // check that the predicted output type was correct
-    assert!(output_value.get().as_type().is_included_in(&output_type));
-    // return the produced value
     Ok((output_type, output_value))
 }