chore: reformat readme

build_readme.js

@@ -3,7 +3,18 @@
 var main = () => {
     var readmeTemplate = __.rfile.from('README_template.md').string();
     var tree = $$.shell().sh('tree -L 2').start()[0];
-    __.rfile.from('README.md').write(readmeTemplate.replace('$$TREE_L2$$', tree));
+    var treeLines = [];
+    var treeOrigLines = $STR(tree).split('\n');
+    var ignoreFileList = ['LICENSE', 'README.md', 'README_template.md', 'build_readme.js'];
+    for (var i = 0; i < treeOrigLines.length; i++) {
+        var ln = treeOrigLines[i];
+        var matches = false;
+        ignoreFileList.forEach((f) => { if (ln.endsWith(f)) { matches = true; } });
+        if (!matches) {
+            treeLines.push(ln);
+        }
+    }
+    __.rfile.from('README.md').write(readmeTemplate.replace('$$TREE_L2$$', treeLines.join('\n')));
 };
 
 main();