Mention running local changes inside monorepo

[ijjk]

This updates the contributing doc to mention an easier workflow for running Next.js apps with additional dependencies locally from within the Next.js monorepo instead of installing it via package.json

x-ref: #19736
x-ref: #13272

Documentation / Examples

• Make sure the linting passes

[ijjk]

Stats from current PR

Default Build (Decrease detected ✓)

General

	vercel/next.js canary	ijjk/next.js update/contributing	Change
buildDuration	15.3s	15.4s	⚠️ +110ms
buildDurationCached	3.6s	3.5s	-99ms
nodeModulesSize	49.3 MB	49.3 MB	✓

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	ijjk/next.js update/contributing	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.42	2.498	⚠️ +0.08
/ avg req/sec	1033.15	1000.84	⚠️ -32.31
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.361	1.377	⚠️ +0.02
/error-in-render avg req/sec	1836.7	1815.8	⚠️ -20.9

Client Bundles (main, webpack, commons)

	vercel/next.js canary	ijjk/next.js update/contributing	Change
359.HASH.js gzip	3.09 kB	3.09 kB	✓
framework-HASH.js gzip	42 kB	42 kB	✓
main-HASH.js gzip	20.6 kB	20.6 kB	✓
webpack-HASH.js gzip	1.49 kB	1.49 kB	✓
Overall change	67.2 kB	67.2 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js update/contributing	Change
polyfills-HASH.js gzip	31.1 kB	31.1 kB	✓
Overall change	31.1 kB	31.1 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js update/contributing	Change
_app-HASH.js gzip	803 B	803 B	✓
_error-HASH.js gzip	3.18 kB	3.18 kB	✓
amp-HASH.js gzip	526 B	526 B	✓
css-HASH.js gzip	329 B	329 B	✓
hooks-HASH.js gzip	903 B	903 B	✓
image-HASH.js gzip	5.69 kB	5.69 kB	✓
index-HASH.js gzip	261 B	261 B	✓
link-HASH.js gzip	1.66 kB	1.66 kB	✓
routerDirect..HASH.js gzip	319 B	319 B	✓
withRouter-HASH.js gzip	320 B	320 B	✓
bb14e60e810b..30f.css gzip	125 B	125 B	✓
Overall change	14.1 kB	14.1 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js update/contributing	Change
_buildManifest.js gzip	419 B	419 B	✓
Overall change	419 B	419 B	✓

Rendered Page Sizes

	vercel/next.js canary	ijjk/next.js update/contributing	Change
index.html gzip	531 B	531 B	✓
link.html gzip	544 B	544 B	✓
withRouter.html gzip	524 B	524 B	✓
Overall change	1.6 kB	1.6 kB	✓

---

Webpack 4 Mode (Decrease detected ✓)

General

	vercel/next.js canary	ijjk/next.js update/contributing	Change
buildDuration	12s	12s	⚠️ +8ms
buildDurationCached	4.8s	4.9s	⚠️ +121ms
nodeModulesSize	49.3 MB	49.3 MB	✓

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	ijjk/next.js update/contributing	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.479	2.543	⚠️ +0.06
/ avg req/sec	1008.52	983.15	⚠️ -25.37
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.393	1.414	⚠️ +0.02
/error-in-render avg req/sec	1795.07	1767.44	⚠️ -27.63

Client Bundles (main, webpack, commons)

	vercel/next.js canary	ijjk/next.js update/contributing	Change
14.HASH.js gzip	3.11 kB	3.11 kB	✓
677f882d2ed8..HASH.js gzip	13.9 kB	13.9 kB	✓
framework.HASH.js gzip	41.8 kB	41.8 kB	✓
main-HASH.js gzip	7.81 kB	7.81 kB	✓
webpack-HASH.js gzip	1.19 kB	1.19 kB	✓
Overall change	67.8 kB	67.8 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js update/contributing	Change
polyfills-HASH.js gzip	31.3 kB	31.3 kB	✓
Overall change	31.3 kB	31.3 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js update/contributing	Change
_app-HASH.js gzip	791 B	791 B	✓
_error-HASH.js gzip	3.83 kB	3.83 kB	✓
amp-HASH.js gzip	531 B	531 B	✓
css-HASH.js gzip	333 B	333 B	✓
hooks-HASH.js gzip	910 B	910 B	✓
index-HASH.js gzip	230 B	230 B	✓
link-HASH.js gzip	1.64 kB	1.64 kB	✓
routerDirect..HASH.js gzip	297 B	297 B	✓
withRouter-HASH.js gzip	293 B	293 B	✓
e025d2764813..52f.css gzip	125 B	125 B	✓
Overall change	8.98 kB	8.98 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js update/contributing	Change
_buildManifest.js gzip	418 B	418 B	✓
Overall change	418 B	418 B	✓

Rendered Page Sizes

	vercel/next.js canary	ijjk/next.js update/contributing	Change
index.html gzip	574 B	574 B	✓
link.html gzip	586 B	586 B	✓
withRouter.html gzip	569 B	569 B	✓
Overall change	1.73 kB	1.73 kB	✓

Commit: fba5ad4