docs: add "what is modified" in FAQ

Author: subframe7536

README.md

@@ -181,6 +181,12 @@ To disable all external resources, setup:
 
 ## FAQ
 
+### What is modified
+
+ALL modifications are located in VSCode's installation directory, and modified files are backed up with `custom-ui-style` suffix in same directory. See all file paths in [path.ts](https://github.com/subframe7536/vscode-custom-ui-style/tree/main/src/path.ts)
+
+When reload config, the extension will check backup file first, then read content from backup file and overwrite the original file with patches. Finally try to reload window or restart APP.
+
 ### No Effect
 
 If you are using Windows or Linux, make sure you have closed all the VSCode windows and then restart.
@@ -209,7 +215,13 @@ See in [#6](https://github.com/subframe7536/vscode-custom-ui-style/issues/6)
 
 ### Fail to render panel
 
-According to [#34](https://github.com/subframe7536/vscode-custom-ui-style/issues/34), in Cursor (close source VSCode's fork), the extension detail panel will not show by default due to the violation of iframe's CSP. Currently the way to fix it is just skip patch on webview, so please set `"custom-ui-style.webview.enable": false`
+According to [#34](https://github.com/subframe7536/vscode-custom-ui-style/issues/34), in Cursor (close source VSCode's fork), the extension detail panel will not show by default due to the violation of iframe's CSP. Currently the way to fix it is just skip patch on webview, so please set:
+
+```json
+{
+  "custom-ui-style.webview.enable": false
+}
+```
 
 ## Configurations
 

src/path.ts

@@ -68,19 +68,19 @@ function getWorkbenchPath(baseExt: string, backupExt?: string) {
   )
 }
 /**
- * CSS file path
+ * Workbench CSS file path
  */
 export const cssPath = getWorkbenchPath('css')
 /**
- * CSS file backup path
+ * Workbench CSS file backup path
  */
 export const cssBakPath = getWorkbenchPath('css', bakExt)
 /**
- * Main js file path
+ * Workbench main js file path
  */
 export const rendererPath = getWorkbenchPath('js')
 /**
- * Main js file backup path
+ * Workbench main js file backup path
  */
 export const rendererBakPath = getWorkbenchPath('js', bakExt)
 
@@ -96,7 +96,13 @@ function getMainPath(baseExt: string, backupExt?: string) {
   return fs.existsSync(defaultPath) ? defaultPath : path.join(baseDir, `main.${ext}`)
 }
 
+/**
+ * VSCode main js path
+ */
 export const mainPath = getMainPath('js')
+/**
+ * VSCode main js backup path
+ */
 export const mainBakPath = getMainPath('js', bakExt)
 
 function getProductJSONPath(baseExt: string, backupExt?: string) {