Merge pull request #121 from vpuri3/patch-4

Update custom.md

Author: ChrisRackauckas

docs/src/advanced/custom.md

@@ -18,7 +18,7 @@ function my_linsolve(A,b,u,p,newA,Pl,Pr,solverdata;verbose=true, kwargs...)
 end
 
 prob = LinearProblem(Diagonal(rand(4)), rand(4))
-alg  = LinearSolveFunction(my_linsolve),
+alg  = LinearSolveFunction(my_linsolve)
 sol  = solve(prob, alg)
 ```
 The inputs to the function are as follows:
@@ -30,8 +30,8 @@ The inputs to the function are as follows:
 - `Pl`, left-preconditioner
 - `Pr`, right-preconditioner
 - `solverdata`, solver cache set to `nothing` if solver hasn't been initialized
-- `kwargs`, standard SciML keyword arguments such as `verbose`, `maxiters`,
-`abstol`, `reltol`
+- `kwargs`, standard SciML keyword arguments such as `verbose`, `maxiters`, `abstol`, `reltol`
+
 The function `my_linsolve` must accept the above specified arguments, and return
 the solution, `u`. As memory for `u` is already allocated, the user may choose
 to modify `u` in place as follows:
@@ -47,9 +47,3 @@ end
 alg  = LinearSolveFunction(my_linsolve!)
 sol  = solve(prob, alg)
 ```
-Finally, note that `LinearSolveFunction()` dispatches to the default linear solve
-algorithm handling if no arguments are passed in.
-```julia
-alg = LinearSolveFunction()
-sol = solve(prob, alg) # same as solve(prob, nothing)
-```