Update lib/locales/zh-cn.js

Co-Authored-By: Byron Zhu <byronz@users.noreply.github.com>

Author: boltomli

lib/locales/zh-cn.js

@@ -61,7 +61,7 @@ module.exports = {
         'median:': '中位:',                                                                    // traces/box/calc.js:128
         'min:': '最小:',                                                                       // traces/box/calc.js:129
         'Turntable rotation': '按轴旋转:',                                                     // components/modebar/buttons.js:288
-        'Toggle Spike Lines': '是否显示 Spike Lines',                                          // components/modebar/buttons.js:548
+        'Toggle Spike Lines': '切换显示数据点辅助线(Spike Lines)',   
         'open:': '开:',                                                                        // traces/ohlc/transform.js:136
         'high:': '高:',                                                                        // traces/ohlc/transform.js:137
         'low:': '低:',                                                                         // traces/ohlc/transform.js:138