UPDATE: First commit with the new documentation

docs/src/functions/financial.md

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+---
+layout: doc
+outline: deep
+lang: en-US
+---
+
+# Financial functions
+
+- ACCRINT
+- ACCRINTM
+- AMORDEGRC
+- AMORLINC
+- COUPDAYBS
+- COUPDAYS
+- COUPDAYSNC
+- COUPNCD
+- COUPNUM
+- COUPPCD
+- CUMIPMT
+- CUMPRINC
+- DB
+- DDB
+- DISC
+- DOLLARDE
+- DOLLARFR
+- DURATION
+- EFFECT
+- [FV](/functions/financial/fv)
+- FVSCHEDULE
+- INTRATE
+- IPMT
+- IRR
+- ISPMT
+- MDURATION
+- MIRR
+- NOMINAL
+- NPER
+- NPV
+- ODDFPRICE
+- ODDFYIELD
+- ODDLPRICE
+- ODDLYIELD
+- PDURATION
+- PMT
+- PPMT
+- PRICE
+- PRICEDISC
+- PRICEMAT
+- PV
+- RATE
+- RECEIVED
+- RRI
+- SLN
+- SYD
+- TBILLEQ
+- TBILLPRICE
+- TBILLYIELD
+- VDB
+- XIRR
+- XNPV
+- YIELD
+- YIELDDISC
+- YIELDMAT