chore: add faq

README.md

@@ -2,12 +2,12 @@
 
 Use `single-spa` `systemjs` in your `create-react-app`.
 
-> Quickly adapt `react-scripts` as a submodule of single-spa !!!   
+> Quickly adapt `react-scripts` as a submodule of single-spa !!!  
 > Support `[email protected]` `[email protected]` version.
 
 ## Features
 
-- Support `[email protected]` compatible with common configuration migrations 
+- Support `[email protected]` compatible with common configuration migrations
 - Output `systemjs` library auto add `SystemJSPublicPathPlugin`
 - Support `ReactFastRefresh` hot refresh
 
@@ -58,52 +58,84 @@ module.exports = {
 ## Options
 
 ### orgName
-Type: `string`   
+
+Type: `string`  
 The name of the organization this application is written for.
 
 ### projectName
-Type: `string`   
+
+Type: `string`  
 The name of the current project. This usually matches the git repo's name.
 
 ### entry
-Type: `string`   
-Default: `src/{orgName}-{projectName}.{js|jsx|ts|tsx}` `src/index.{js|jsx|ts|tsx}`   
+
+Type: `string`  
+Default: `src/{orgName}-{projectName}.{js|jsx|ts|tsx}` `src/index.{js|jsx|ts|tsx}`  
 The entry file.
 
 ### outputFilename
-Type: `string`   
-Default:    
-    - development `{orgName}-{projectName}.[contenthash:8].js`   
-    - production `{orgName}-{projectName}.js`
+
+Type: `string`  
+Default:
+
+- development `{orgName}-{projectName}.[contenthash:8].js`
+- production `{orgName}-{projectName}.js`
 
 ### rootDirectoryLevel
-Type: `number`   
+
+Type: `number`  
 This is the rootDirectoryLevel that is passed to https://github.com/joeldenning/systemjs-webpack-interop.
 
 ### reactPackagesAsExternal
+
 Type: `boolean`
 This will `react` `react-dom` as webpack externals or not.
 
 ### orgPackagesAsExternal
-Type: `boolean`   
+
+Type: `boolean`  
 This changes whether package names that start with @your-org-name are treated as webpack externals or not.
 
 ### peerDepsAsExternal
+
 Type: `boolean`
 This will package.json `peerDependencies` as webpack externals or not.
 
 ## FQA
 
 ### FastRefresh invalid
-- If `react` `react-dom` is external, `react-dev-tool` must be installed to refresh automatically. 
-For details, please see https://github.com/facebook/react/issues/17552
+
+- If `react` `react-dom` is external, `react-dev-tool` must be installed to refresh automatically.
+  For details, please see https://github.com/facebook/react/issues/17552
 - Check whether the ws connection is normal, you can set in `.env` file
   - `WDS_SOCKET_PORT` "2002"
   - `WDS_SOCKET_HOST` "localhost"
   - `WDS_SOCKET_PATH` "/projectName" **Please start with "/"**
-  > The default hotreload client uses the relative website protocol, 
-  which is the protocol of the main base. It can use the localhost 
-  protocol and the local development port.
+    > The default hotreload client uses the relative website protocol,
+    > which is the protocol of the main base. It can use the localhost
+    > protocol and the local development port.
+
+### webpack < 5 used to include polyfills for node.js core modules by default
+
+The following packages have been integrated by default, and the specified dependencies can be installed directly in the project.
+
+```json
+{
+  "url": "url",
+  "fs": "fs",
+  "assert": "assert",
+  "crypto": "crypto-browserify",
+  "http": "stream-http",
+  "https": "https-browserify",
+  "os": "os-browserify/browser",
+  "buffer": "buffer",
+  "stream": "stream-browserify"
+}
+```
+
+### You attempted to import XXXXXXXX which falls outside of the project src/ directory
+
+You can use `customize-cra` `removeModuleScopePlugin()`
 
 ## License