diff --git a/coc.nvim.md b/coc.nvim.md
index 70f12de..b6fc259 100644
--- a/coc.nvim.md
+++ b/coc.nvim.md
@@ -2,18 +2,23 @@
 2. Install [coc.nvim](https://github.com/neoclide/coc.nvim)
 
 `~/.config/nvim/coc-settings.json`
-```json
+```jsonc
 {
   "languageserver": {
     "ccls": {
       "command": "ccls",
       "filetypes": ["c", "cpp", "cuda", "objc", "objcpp"],
-      "initializationOptions": {}
+      "rootPatterns": [".ccls", "compile_commands.json", ".vim/", ".git/", ".hg/"],
+      "initializationOptions": {
+         "cacheDirectory": "/tmp/ccls"
+       }
     }
   }
 }
 ```
 
+<sub>Note: coc.nvim also supports [configuration from `.vimrc` instead](https://github.com/neoclide/coc.nvim/blob/2e93b1feff57e41a04c9f714c61c025e2d17eaa3/doc/coc.txt#L625).</sub>
+
 First example:
 
 ```zsh