docs(example): update dev/start script in netlify example

Summary of change

update dev/start script in netlify example

Covered by example tests (GH Action)

N/A

[x] Changelog has been updated
[x] frontendDriverInterfaceSupported.json file has been updated (if needed)
[ ] Changes to the version if needed
- In package.json
- In package-lock.json
- In lib/ts/version.ts
[x] Had run npm run build-pretty
[x] Had installed and ran the pre-commit hook
[x] Issue this PR against the latest non released version branch.
- To know which one it is, run find the latest released tag (git tag) in the format vX.Y.Z, and then find the latest branch (git branch --all) whose X.Y is greater than the latest released tag.
- If no such branch exists, then create one from the latest released branch.
[x] If added a new recipe interface, then make sure that the implementation of it uses NON arrow functions only (like someFunc: function () {..}).
[x] If I added a new recipe, I also added the recipe entry point into the size-limit section of package.json with the size limit set to the current size rounded up.
[x] If I added a new recipe, I also added the recipe entry point into the rollup.config.mjs

Path	Size
lib/build/index.js	14.18 KB (0%)
recipe/session/index.js	15.14 KB (0%)
recipe/session/prebuiltui.js	17.76 KB (0%)
recipe/thirdpartyemailpassword/index.js	29.66 KB (0%)
recipe/thirdparty/index.js	26.44 KB (0%)
recipe/emailpassword/index.js	9.94 KB (0%)
recipe/emailverification/index.js	7.26 KB (0%)
recipe/passwordless/index.js	63.47 KB (0%)
recipe/thirdpartypasswordless/index.js	84.21 KB (0%)
recipe/emailverification/prebuiltui.js	22.45 KB (0%)
recipe/thirdpartyemailpassword/prebuiltui.js	53.8 KB (0%)
recipe/thirdparty/prebuiltui.js	38.51 KB (0%)
recipe/emailpassword/prebuiltui.js	27.51 KB (0%)
recipe/passwordless/prebuiltui.js	102.75 KB (0%)
recipe/thirdpartypasswordless/prebuiltui.js	130.38 KB (0%)
recipe/multitenancy/index.js	6.12 KB (0%)