fix en chart

Author: YqGe585

docs/dev_guides/custom_device_docs/custom_runtime_en.rst

@@ -145,7 +145,7 @@ Event APIs
 +-------------------+------------------------------------------------------+----------+
 
 Collective communication APIs
-############
+###############################
 
 +-------------------------+---------------------------------------------------------+----------+
 |           API           |                        Function                         | Required |
@@ -179,7 +179,7 @@ Collective communication APIs
 
 
 Profiler APIs
-############
+###############
 
 +-----------------------------+-----------------------------------+----------+
 |             API             |             Function              | Required |