Update docs/src/training/zygote.md

Co-authored-by: Saransh <saransh0701@gmail.com>

Author: mcabbott

docs/src/training/zygote.md

@@ -7,7 +7,7 @@ Flux re-exports the `gradient` from [Zygote](https://github.com/FluxML/Zygote.jl
 Flux uses primarily what Zygote calls "implicit" gradients, [described here](https://fluxml.ai/Zygote.jl/dev/#Explicit-and-Implicit-Parameters-1) in its documentation. 
 
 ```@docs
-Zygote.gradient(f, pars::Zygote.Params)
+Zygote.gradient
 Zygote.Params
 Zygote.Grads
 ```