Update docs/src/training/optimisers.md

Co-authored-by: Brian Chen <ToucheSir@users.noreply.github.com>

Author: svilupp

docs/src/training/optimisers.md

@@ -135,7 +135,7 @@ end
 loss(rand(10)) # around 0.9
 ```
 
-In this manner, it is possible to compose optimisers for some added flexibility.
+It is possible to compose optimisers for some added flexibility.
 
 ```@docs
 Flux.Optimise.Optimiser