Merge branch 'master' into format

Author: ChrisRackauckas

docs/src/tutorials/getting_started.md

@@ -123,7 +123,7 @@ isconstant(opB)
 
 Now let's define the operators from above in a matrix-free way using `FunctionOperator`.
 With `FunctionOperator`, we directly define the operator application function `opA(w,v,u,p,t)`
-which means `w = opA(u,p,t)*v`. For exmaple we can do the following:
+which means `w = opA(u,p,t)*v`. For example we can do the following:
 
 ```@example getting_started
 function Afunc!(w, v, u, p, t)