Remove duplicate word in Roadmap description.
Remove duplicate word in Roadmap description.

Signed-off-by: Ashutosh Narkar <334e9094b46d3151817f829cebfa78d0453b0333@gmail.com>

open-policy-agent/opa,open-policy-agent/opa,tsandall/opa,open-policy-agent/opa,open-policy-agent/opa,tsandall/opa,open-policy-agent/opa,tsandall/opa,open-policy-agent/opa,tsandall/opa,tsandall/opa,tsandall/opa