diff --git a/README.md b/README.md
index 728c9c0..e9ec4a9 100644
--- a/README.md
+++ b/README.md
@@ -21,11 +21,9 @@ If you need a lighter template without any console commands: [inkjs-boilerplate.
 * Keyboard support (press 1-9 to select 1th-9th choices, 0 to choose 10th)
 * Great game performance (all JS is ~200Kb in size with Inkjs runtime)
 * For authors: `npm watch` will auto-recompile the game on changes to JS or JSON
+  * Auto-recompiling from ink to JSON is not included, though
+* Mobile-ready layout
+* Editable color scheme
 
 ### Compatibility
 Compatible browsers: Chrome >= 60, Firefox >= 60, iOS >= 12, Safari >= 12.
-
-If you want to support older browsers (released before 2018),
-you'll have to rewrite the CSS.
-I use Bootstrap 5 because it's a good framework but it's also very modern.
-Other than that, the code depends only on inkJS and jQuery so it should comfortably support IE9+
diff --git a/js/script.js b/js/script.js
index 5197efc..bdb4df7 100644
--- a/js/script.js
+++ b/js/script.js
@@ -1,9 +1,26 @@
 import jQuery from 'jquery'
 const inkjs = require('inkjs').Story;
+/**
+ * Path to your game's compiled JSON.
+ * It is relative to index.html file.
+ */
 const entryPoint = 'game/fogg.ink.json';
 
 let continueToNextChoice, displayText, loadGame, saveChoice, s;
 
+/**
+ * You can change this function.
+ * It's an easy way to define your own tags and text transformations.
+ */
+transform = function(text) {
+  text = text.replace('<st>', '<span class="subtitle">');
+  text = text.replace('</st>', '</span>');
+  return text;
+}
+
+/**
+ * You don't need to change anything past this point.
+ */
 saveChoice = function(index) {
   window.progress.push(index);
   return localStorage.setItem("progress", JSON.stringify(window.progress));
@@ -23,8 +40,7 @@ displayText = function(s, interactive = true) {
       for (j = 0, len = paragraphs.length; j < len; j++) {
         i = paragraphs[j];
         if (i !== "") {
-          i = i.replace('<st>', '<span class="subtitle">');
-          i = i.replace('</st>', '</span>');
+          i = transform(i);
           html = jQuery.parseHTML(i);
           block = jQuery('<p>').html(html);
           if (interactive) {
@@ -56,8 +72,7 @@ continueToNextChoice = function(s) {
     ref = s.currentChoices;
     for (j = 0, len = ref.length; j < len; j++) {
       choice = ref[j];
-      let text = choice.text.replace('<st>', '<span class="subtitle">');
-      text = text.replace('</st>', '</span>')
+      let text = transform(choice.text)
       jQuery("#options").append(`<li><a href='#' id='choice-${choice.index}' data-index=${choice.index}>${text}</a></li>`);
     }
     jQuery("#options").fadeIn(500);