added workaround for jest resolving axios >= v1.0

https://stackoverflow.com/questions/73958968/cannot-use-import-statement-outside-a-module-with-axios

README.md

@@ -26,6 +26,20 @@ Extra features added:
     "type-check": "tsc --noEmit"
 ```
 
+### What's the jest / axios config in package.json?
+
+A workaround to jest incompatibilities with axios now that the latter is packaged as ESM.
+
+```json
+"jest": {
+    "moduleNameMapper": {
+      "axios": "axios/dist/node/axios.cjs"
+    }
+  }
+```
+
+[Read more here](https://stackoverflow.com/a/74297004/669686)
+
 ## Learn more about Create-React-App
 
 You can learn more in the [Create React App documentation](https://create-react-app.dev/).

package.json

@@ -44,5 +44,10 @@
     "eslint": "^8.31.0",
     "eslint-plugin-react": "^7.31.11",
     "prettier": "2.8.2"
+  },
+  "jest": {
+    "moduleNameMapper": {
+      "axios": "axios/dist/node/axios.cjs"
+    }
   }
-}
+}