chore: update readme

Signed-off-by: Clément Salaün <[email protected]>

README.md

@@ -7,7 +7,7 @@
 
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-Formance Ledger (fka numary) is a programmable financial ledger that provides a foundation for money-moving applications. The ledger provides atomic multi-postings transactions and is programmable in [Numscript](doc:machine-instructions), a built-in language dedicated to money movements. It will shine for apps that require a lot of custom, money-moving code, e.g:
+Formance Ledger (fka numary) is a programmable financial ledger that provides a foundation for money-moving applications. The ledger provides atomic multi-postings transactions and is programmable in [Numscript](doc:machine-instructions), a built-in language dedicated to money movements. It can be used either as a standalone micro-service or as part of the greater Formance Stack, and will shine for apps that require a lot of custom, money-moving code, e.g:
 
 * E-commerce with complex payments flows, payments splitting, such as marketplaces
 * Company-issued currencies systems, e.g. Twitch Bits