update docs to state most derivatives have been implemented

docs/src/basics/solution.md

@@ -93,7 +93,7 @@ Note that the interpolating function allows for `t` to be a vector and uses this
 sol(t, deriv = Val{0}; idxs = nothing, continuity = :left)
 ```
 
-The optional argument `deriv` lets you choose the number `n` derivative to solve the interpolation for, defaulting with `n=0`. Note that most of the derivatives have not yet been implemented (though it's not hard, it just has to be done manually for each algorithm. Open an issue if there's a specific one you need). `continuity` describes whether to satisfy left or right continuity when a discontinuity is saved. The default is `:left`, i.e. grab the value before the callback's change, but can be changed to `:right`. `idxs` allows you to choose the indices the interpolation should solve for. For example,
+The optional argument `deriv` lets you choose the number `n` derivative to solve the interpolation for, defaulting with `n=0`. (Note the implementation of this is per solver, most of the derivatives have implemented, but you might find some that are not. Open an issue if there's a specific one needed that you find is missing). `continuity` describes whether to satisfy left or right continuity when a discontinuity is saved. The default is `:left`, i.e. grab the value before the callback's change, but can be changed to `:right`. `idxs` allows you to choose the indices the interpolation should solve for. For example,
 
 ```julia
 sol(t, idxs = 1:2:5)