Merge pull request #345 from getlago/docs/upgrade

upgrade docs

Merge pull request #341 from getlago/doc-disable-pdf

Merge pull request #344 from getlago/misc-unicity-notice

misc(events): Add guide about idem potency

Merge pull request #342 from getlago/doc-rbac-payments

add anrok link to integration page

doc(RBAC): Add payment to rbac

doc(Invoice): Remove unecessary doc in invoice category

doc(Invoicing): Doc for not generating pdf

Merge pull request #340 from getlago/changelog-march

add changelog for invoice preview

Merge pull request #339 from getlago/doc-wallet-impr

doc(Changelog): Wallet details and failed trx

Merge pull request #338 from getlago/doc-wallet-expiration-date

doc(Changelog): Edit post date for changelog

Merge pull request #329 from getlago/doc-wallet-rule-expiration

Merge pull request #337 from getlago/doc-wallet-rounding

doc(Wallet): details for voiding

doc(Wallet): Add details on rounding rules