diff --git a/coc.nvim.md b/coc.nvim.md
index 22edcc7..79efb32 100644
--- a/coc.nvim.md
+++ b/coc.nvim.md
@@ -8,7 +8,7 @@ Open config file with command `:CocConfig`
     "ccls": {
       "command": "ccls",
       "filetypes": ["c", "cpp", "cuda", "objc", "objcpp"],
-      "rootPatterns": [".ccls", "compile_commands.json", ".vim/", ".git/", ".hg/"],
+      "rootPatterns": [".ccls-root", "compile_commands.json"],
       "initializationOptions": {
          "cache": {
            "directory": ".ccls-cache"
@@ -48,24 +48,16 @@ au CursorHold * sil call CocActionAsync('highlight')
 au CursorHoldI * sil call CocActionAsync('showSignatureHelp')
 ```
 
-### `$ccls/navigate`
+### Completion
 
-Semantic navigation. Roughly,
+Install [coc-snippets](https://github.com/neoclide/coc-snippets) to enable LSP snippets.
 
-"D" => first child declaration
-"L" => previous declaration
-"R" => next declaration
-"U" => parent declaration
-
-```vim
-nn <silent><buffer> <C-l> :call CocLocations('ccls','$ccls/navigate',{'direction':'D'})<cr>
-nn <silent><buffer> <C-k> :call CocLocations('ccls','$ccls/navigate',{'direction':'L'})<cr>
-nn <silent><buffer> <C-j> :call CocLocations('ccls','$ccls/navigate',{'direction':'R'})<cr>
-nn <silent><buffer> <C-h> :call CocLocations('ccls','$ccls/navigate',{'direction':'U'})<cr>
-```
+See [[client.snippetSupport and completion.placeholder|Customization#clientsnippetsupport]] for customization of snippet expansion.
 
 ### Cross reference extensions
 
+See [[LSP Extensions]] for the description of these extensions.
+
 ```vim
 " bases
 nn <silent> xb :call CocLocations('ccls','$ccls/inheritance')<cr>
@@ -94,4 +86,15 @@ nn <silent> xv :call CocLocations('ccls','$ccls/vars')<cr>
 nn <silent> xV :call CocLocations('ccls','$ccls/vars',{'kind':1})<cr>
 
 nn xx x
-```
\ No newline at end of file
+```
+
+### `$ccls/navigate`
+
+See [[$ccls/navigate|LSP-Extensions#cclsnavigate]]
+
+```vim
+nn <silent><buffer> <C-l> :call CocLocations('ccls','$ccls/navigate',{'direction':'D'})<cr>
+nn <silent><buffer> <C-k> :call CocLocations('ccls','$ccls/navigate',{'direction':'L'})<cr>
+nn <silent><buffer> <C-j> :call CocLocations('ccls','$ccls/navigate',{'direction':'R'})<cr>
+nn <silent><buffer> <C-h> :call CocLocations('ccls','$ccls/navigate',{'direction':'U'})<cr>
+```