remove spare parenthesis in examples.md (#2680)

Author: abhro

docs/src/man/examples.md

@@ -46,7 +46,7 @@ Packages that have tagged versions available in the general Registry:
 - [Mimi.jl](https://www.mimiframework.org/Mimi.jl/stable/)
 - [NumericSuffixes.jl](https://michaelhatherly.github.io/NumericSuffixes.jl/stable/)
 - [NLOptControl.jl](https://huckl3b3rry87.github.io/MPCDocs.jl/stable/)
-- [Oceananigans.jl](https://clima.github.io/OceananigansDocumentation/stable/))
+- [Oceananigans.jl](https://clima.github.io/OceananigansDocumentation/stable/)
 - [OhMyREPL.jl](https://github.com/KristofferC/OhMyREPL.jl)
 - [OnlineStats.jl](https://joshday.github.io/OnlineStats.jl/stable/)
 - [PauliStrings.jl](https://paulistrings.org/dev/)