[Nit][hello]: Fix Getting Started Run Command

[RajVarsani]

Description:

• The hello program's main function expects two arguments but none are mentioned in the command provided

Fix:

• Add two input values summing to 3 as shown in the result in the docs

[RajVarsani]

Noticed this when going through getting started docs. Am newly introduced to Leo feel free to share if I'm missing anything Happy hacking