small docs updates, add trailing slash to autocompleted directories

src/bin/relish.rs

@@ -148,14 +148,14 @@ impl Completer for CustomCompleter {
                                     .as_os_str()
                                     .to_str()
                                     .expect("bad dir somehow?")
-                                    .to_owned(),
+                                    .to_owned() + "/",
                                 description: None,
                                 extra: None,
-                                append_whitespace: false,
                                 span: Span {
                                     start,
                                     end: pos
-                                }
+                                },
+                                append_whitespace: false
                             });
                         }
                     }