Fix spelling (#1569)

nx/lib/nx.ex

@@ -417,7 +417,7 @@ defmodule Nx do
         config: [nx: [default_backend: EXLA.Backend]]
       )
 
-  Or by calling `Nx.global_default_backend/1` (less preferrable):
+  Or by calling `Nx.global_default_backend/1` (less preferable):
 
       Nx.global_default_backend(EXLA.Backend)
 
@@ -614,7 +614,7 @@ defmodule Nx do
       >
 
   Certain backends and compilers support 8-bit floats. The precision
-  iomplementation of 8-bit floats may change per backend, so you must
+  implementation of 8-bit floats may change per backend, so you must
   be careful when transferring data across. The binary backend implements
   F8E5M2:
 
@@ -7684,7 +7684,7 @@ defmodule Nx do
   number of indices, while `updates` must have a compatible `{n, ...j}` shape, such that
   `i + j = rank(tensor)`.
 
-  In case of repeating indices, the result is non-determinstic, since the operation happens
+  In case of repeating indices, the result is non-deterministic, since the operation happens
   in parallel when running on devices such as the GPU.
 
   See also: `indexed_add/3`, `put_slice/3`.

nx/lib/nx/backend.ex

@@ -138,7 +138,7 @@ defmodule Nx.Backend do
   First we will attempt to call the optional callback itself
   (one of the many callbacks defined below), then we attempt
   to call this callback (which is also optional), then we
-  fallback to the default iomplementation.
+  fallback to the default implementation.
   """
   @callback optional(atom, [term], fun) :: tensor
 

nx/lib/nx/defn.ex

@@ -66,7 +66,7 @@ defmodule Nx.Defn do
   ## JIT compilers
 
   The power of `Nx.Defn` is given by its compilers. The default
-  compiler is `Nx.Defn.Evaluator`, which evalutes the code.
+  compiler is `Nx.Defn.Evaluator`, which evaluates the code.
   You can use `jit/3` to compile a function on the fly using a
   different compiler, such as `EXLA`: