minor #12632 [Docs] Mention localhost exposure for easier Facebook login (Zales0123)
minor #12632 [Docs] Mention localhost exposure for easier Facebook login (Zales0123)

This PR was merged into the 1.8 branch.

Discussion
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| Q               | A
| --------------- | -----
| Branch?         | 1.8
| Bug fix?        | no
| New feature?    | no
| BC breaks?      | no
| Deprecations?   | no
| Related tickets | 
| License         | MIT

Configuring the Facebook app with `localhost` sometimes does not work. Exposing local server temporarily seems to be more reliable. 


Commits
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aa37ed12fc7d82db03a0104fecc38009050f2087 Mention localhost exposure for easier Facebook login

101medialab/Sylius,pamil/Sylius,diimpp/Sylius,GSadee/Sylius,Zales0123/Sylius,pamil/Sylius,Arminek/Sylius,Sylius/Sylius,loic425/Sylius,Sylius/Sylius,101medialab/Sylius,SyliusBot/Sylius,antonioperic/Sylius,GSadee/Sylius,SyliusBot/Sylius,antonioperic/Sylius,101medialab/Sylius,SyliusBot/Sylius,lchrusciel/Sylius,Arminek/Sylius,Zales0123/Sylius,loic425/Sylius,loic425/Sylius,Arminek/Sylius,diimpp/Sylius,diimpp/Sylius,pamil/Sylius,GSadee/Sylius,lchrusciel/Sylius,Zales0123/Sylius,antonioperic/Sylius,lchrusciel/Sylius,Sylius/Sylius