Fix a link typo in beginners guide

doc/fluid/index_cn.rst

@@ -14,10 +14,3 @@
     new_docs/user_guides/index.rst
     new_docs/advanced_usage/index.rst
 
-Indices and tables
-==================
-
-* :ref:`genindex`
-* :ref:`modindex`
-* :ref:`search`
-

doc/fluid/new_docs/beginners_guide/index.rst

@@ -10,6 +10,6 @@
     :maxdepth: 2
     
     install/install_doc.rst
-    quick_start/quick_start.rst
+    quick_start/index.rst
     basics/index.rst
     basics/Guide.md