diff --git a/autoload/SpaceVim/default.vim b/autoload/SpaceVim/default.vim
index 471907ffe..ea6551255 100644
--- a/autoload/SpaceVim/default.vim
+++ b/autoload/SpaceVim/default.vim
@@ -44,6 +44,9 @@ function! SpaceVim#default#SetOptions() abort
     set softtabstop=4
     set shiftwidth=4
 
+    " autoread
+    set autoread
+
     " backup
     set backup
     set undofile
diff --git a/autoload/SpaceVim/layers/lang/c.vim b/autoload/SpaceVim/layers/lang/c.vim
index 3b70d4152..44161d7d6 100644
--- a/autoload/SpaceVim/layers/lang/c.vim
+++ b/autoload/SpaceVim/layers/lang/c.vim
@@ -1,5 +1,5 @@
 ""
-" @section Layer_lang_c
+" @section lang#c, layer-lang-c
 " @parentsection layers
 "   this layer provide c family language code completion and syntax chaeck.you
 "   need install clang. 
diff --git a/autoload/SpaceVim/layers/lang/java.vim b/autoload/SpaceVim/layers/lang/java.vim
index 9661008f9..5a732c1f4 100644
--- a/autoload/SpaceVim/layers/lang/java.vim
+++ b/autoload/SpaceVim/layers/lang/java.vim
@@ -1,5 +1,5 @@
 ""
-" @section Layer_lang_java, layer_lang_java
+" @section lang#java, layer-lang-java
 " @parentsection layers
 " This layer is for java development. 
 " >
diff --git a/autoload/SpaceVim/layers/lang/php.vim b/autoload/SpaceVim/layers/lang/php.vim
index c161f1f19..d3d9d4b1f 100644
--- a/autoload/SpaceVim/layers/lang/php.vim
+++ b/autoload/SpaceVim/layers/lang/php.vim
@@ -1,5 +1,5 @@
 ""
-" @section Layer_lang_php
+" @section lang#php, layer-lang-php
 " @parentsection layers
 "   this layer is for php development, and it provide auto codo completion,
 " and syntax check, and jump to the definition location.
diff --git a/autoload/SpaceVim/layers/lang/xml.vim b/autoload/SpaceVim/layers/lang/xml.vim
new file mode 100644
index 000000000..f4cc47bd3
--- /dev/null
+++ b/autoload/SpaceVim/layers/lang/xml.vim
@@ -0,0 +1,13 @@
+""
+" @section lang#xml, layer-lang-xml
+" @parentsection layers
+" when edite an xml file, the omni func is 
+
+
+function! SpaceVim#layers#lang#xml#plugins() abort
+    return []
+endfunction
+
+function! SpaceVim#layers#lang#xml#config() abort
+    
+endfunction
diff --git a/doc/SpaceVim.txt b/doc/SpaceVim.txt
index a4ef7767e..d52c6927a 100644
--- a/doc/SpaceVim.txt
+++ b/doc/SpaceVim.txt
@@ -9,10 +9,11 @@ CONTENTS                                                   *SpaceVim-contents*
   4. Layers..................................................|SpaceVim-layers|
       1. Autocomplete..................................|SpaceVim-autocomplete|
       2. Colorscheme....................................|SpaceVim-colorscheme|
-      3. Layer_lang_c..................................|SpaceVim-layer_lang_c|
-      4. Layer_lang_java............................|SpaceVim-layer_lang_java|
-      5. Layer_lang_php..............................|SpaceVim-layer_lang_php|
-      6. layer-lang-rust............................|SpaceVim-layer-lang-rust|
+      3. lang#c........................................|SpaceVim-layer-lang-c|
+      4. lang#java..................................|SpaceVim-layer-lang-java|
+      5. lang#php....................................|SpaceVim-layer-lang-php|
+      6. lang#xml....................................|SpaceVim-layer-lang-xml|
+      7. layer-lang-rust............................|SpaceVim-layer-lang-rust|
   5. FAQ........................................................|SpaceVim-faq|
 
 ==============================================================================
@@ -384,7 +385,7 @@ colorschemes: if the colorscheme you want do not list below, PR welcome.
 <
 
 ==============================================================================
-LAYER_LANG_C                                           *SpaceVim-layer_lang_c*
+LANG#C                                                 *SpaceVim-layer-lang-c*
 
   this layer provide c family language code completion and syntax chaeck.you
 need install clang.
@@ -421,7 +422,7 @@ setting it to 0 disables this feature.
 
 
 ==============================================================================
-LAYER_LANG_JAVA                                     *SpaceVim-layer_lang_java*
+LANG#JAVA                                           *SpaceVim-layer-lang-java*
 
 This layer is for java development.
 >
@@ -458,7 +459,7 @@ This layer is for java development.
 
 
 ==============================================================================
-LAYER_LANG_PHP                                       *SpaceVim-layer_lang_php*
+LANG#PHP                                             *SpaceVim-layer-lang-php*
 
   this layer is for php development, and it provide auto codo completion, and
 syntax check, and jump to the definition location.
@@ -471,6 +472,11 @@ requirement:
   Composer Project
 <
 
+==============================================================================
+LANG#XML                                             *SpaceVim-layer-lang-xml*
+
+when edite an xml file, the omni func is
+
 ==============================================================================
 LAYER-LANG-RUST                                     *SpaceVim-layer-lang-rust*