update to v2.3.0

add `.rep()` & `.replaceChildren()` function
update `.app()` & `.append()` to support rest params
update build target to ES6
fix comment color on demo page
add (more) tests

dist/demo.html

@@ -148,6 +148,10 @@
                     /\`[^`]+\`/g,
                     (val) => `<span class="code-str">${val}</span>`,
                 )
+                .replace(
+                    /\/\/.*/g,
+                    (val) => `<span class="code-cmnt">${val}</span>`,
+                )
                 .replace(/\.\w+/g, (val) =>
                     val !== ".js"
                         ? `<span class="code-func">${val}</span>`