docs(contribute): debug linter in vscode (#268)

src/docs/contribute/debugging.md

@@ -44,3 +44,36 @@ According to their [debugging guide](https://github.com/microsoft/TypeScript/blo
 - while debugging, tsc will evaluate global `.d.ts` files before the targeted test file
 - `Debug.formatXXX(value)` from `src/compiler/debug.ts` can be used to print out enum values
 - use the "WATCH" section to "see" value of interest
+
+## Debug Linter in VSCode
+
+It's easy to debug Linter for a npm project somewhere else with [CodeLLDB](https://marketplace.visualstudio.com/items?itemName=vadimcn.vscode-lldb).
+
+In `.vscode/launch.json`, change config fields to your need:
+
+- `cwd`: absolute path to the npm project
+- `args`: arguments passed to linter
+
+```json
+{
+  "type": "lldb",
+  "request": "launch",
+  "name": "Debug Oxlint",
+  "cargo": {
+    "env": {
+      "RUSTFLAGS": "-g"
+    },
+    "args": ["build", "--bin=oxlint", "--package=oxlint"],
+    "filter": {
+      "name": "oxlint",
+      "kind": "bin"
+    }
+  },
+  "cwd": "PATH-TO-TEST-PROJECT", // [!code focus]
+  "args": ["--ARGS-TO-OXLINT"] // [!code focus]
+}
+```
+
+Open VS Code Debugging panel and select `Debug Oxlint`, then start debugging.
+
+The debug process will be launched with specified `cwd`, like running linter in testing project and attaching debugger into it.