Update README.md

Co-Authored-By: Fredrik Bagge Carlson <baggepinnen@gmail.com>

README.md

@@ -25,7 +25,7 @@ Compute `f(args...; kwargs...)`, while making use of the preallocations stored i
 This macro is used within code that one might use AutoPreallocation on.
 It is used to mark a section to have all its allocations ignored.
 They will neither be recorded, nor avoided.
-This is useful if internally to the function its allocations are e.g. not nondetermanistic.
+This is useful if internally to the function its allocations are e.g. nondeterministic.
 
 ## Example:
 ```julia