help function displays values not

Signed-off-by: Ava Hahn <ava@aidanis.online>

src/stl/append.rs

@@ -17,6 +17,9 @@
 use crate::segment::{Ctr, Seg};
 use crate::sym::SymTable;
 
+pub const APPEND_DOCSTRING: &str = "traverses any number of arguments collecting them into a list.
+If the first argument is a list, all other arguments are added sequentially to the end of the list contained in the first argument.";
+
 pub fn append_callback(ast: &Seg, _syms: &mut SymTable) -> Result<Ctr, String> {
     if let Ctr::Seg(ref s) = *ast.car {
         let mut temp = s.clone();