fix: use en links for en index page.
diff --git a/_jade/en/index.jade b/_jade/en/index.jade
index f5b67a4..eb34815 100644
--- a/_jade/en/index.jade
+++ b/_jade/en/index.jade
@@ -20,13 +20,13 @@
                         .home-brand Apache ECharts
                         .home-subtitle An Open Source JavaScript Visualiztion Library
                         .home-btn-panel
-                            a.btn.btn-main.btn-index-home(href='#{host}/tutorial.html#5%20εˆ†ι’ŸδΈŠζ‰‹%20ECharts')
+                            a.btn.btn-main.btn-index-home(href='#{host}/tutorial.html#Get%20Started%20with%20ECharts%20in%205%20minutes')
                                 include ../components/svg/index-learn
                                 span Get Started
-                            a.btn.btn-main.btn-index-home(href='#{host}/examples/zh/index.html')
+                            a.btn.btn-main.btn-index-home(href='#{host}/examples/en/index.html')
                                 include ../components/svg/index-example
                                 span Demo
-                            a.btn.btn-main.btn-index-home.btn-index-github(href='https://github.com/apache/incubator-echarts', target='_blank')
+                            a.btn.btn-main.btn-index-home.btn-index-github(href='https://github.com/apache/echarts', target='_blank')
                                 include ../components/svg/github
                                 +svgGithub('#081642')
                     .home-chart