docs：更新文档

node_modules/icss-replace-symbols/lib/index.js

@@ -0,0 +1,28 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.replaceAll = replaceAll;
+var matchConstName = /[$#]?[\w-\.]+/g;
+
+function replaceAll(replacements, text) {
+  var matches = void 0;
+  while (matches = matchConstName.exec(text)) {
+    var replacement = replacements[matches[0]];
+    if (replacement) {
+      text = text.slice(0, matches.index) + replacement + text.slice(matchConstName.lastIndex);
+      matchConstName.lastIndex -= matches[0].length - replacement.length;
+    }
+  }
+  return text;
+}
+
+exports.default = function (css, translations) {
+  css.walkDecls(function (decl) {
+    return decl.value = replaceAll(translations, decl.value);
+  });
+  css.walkAtRules('media', function (atRule) {
+    return atRule.params = replaceAll(translations, atRule.params);
+  });
+};