Update saas-apps.md

Typo
Install auth0/webheader as docs header
Merge pull request #173 from cristiandouce/update/web-header

Install auth0/webheader as docs header
Merge pull request #172 from IndrekEiche/patch-1

Update saas-apps.md
Fix wrong browser sdk snippet using widget instead of lock
Remove unused middleware for browser SDK snippet with auth0-widget no longer used
Merge pull request #174 from cristiandouce/fix/browser-snippet

Fix browser snippet using auth0-widget insted of auth0-lock
Added topic on passwordless
Fix npm-shrinkwrap json file
Merge pull request #175 from cristiandouce/fix/shrinkwrap

Fix npm-shrinkwrap json file
Minor on passwrodless
Fixed a couple typos
Merge pull request #176 from auth0/passwordless

Passwordless
Fix quickstart routing sets
Merge pull request #177 from cristiandouce/fix/quickstart-webapp

Fix quickstart routing sets
Move /widget redirect to lib/redirects module
Merge pull request #178 from cristiandouce/update/redirects

Move /widget redirect to lib/redirects module
Add scenarios redirects
Move all scenarios to a containing folder under docs/scenarios/ and also rewrite and redirect urls
Merge pull request #179 from cristiandouce/move/scenarios

Move scenarios to containing folder under `docs/scenarios`