Fix index.md

Author: lostella

docs/src/index.md

@@ -14,12 +14,8 @@ Implemented algorithms include:
 Check out [this section](@ref problems_algorithms) for an overview of the available algorithms.
 
 Algorithms rely on:
-- [AbstractDifferentiation.jl](https://github.com/JuliaDiff/AbstractDifferentiation.jl) for automatic differentiation
-(but you can easily bring your own gradients)
-- the [ProximalCore API](https://github.com/JuliaFirstOrder/ProximalCore.jl) for proximal mappings, projections, etc,
-to handle non-differentiable terms
-(see for example [ProximalOperators](https://github.com/JuliaFirstOrder/ProximalOperators.jl)
-for an extensive collection of functions).
+- [AbstractDifferentiation.jl](https://github.com/JuliaDiff/AbstractDifferentiation.jl) for automatic differentiation (but you can easily bring your own gradients),
+- the [ProximalCore API](https://github.com/JuliaFirstOrder/ProximalCore.jl) for proximal mappings, projections, etc, to handle non-differentiable terms (see for example [ProximalOperators](https://github.com/JuliaFirstOrder/ProximalOperators.jl) for an extensive collection of functions).
 
 !!! note