Update Flux requirement to 0.16.10 in /docs

Updates the requirements on [Flux](https://github.com/FluxML/Flux.jl) to permit the latest version.
- [Release notes](https://github.com/FluxML/Flux.jl/releases)
- [Changelog](https://github.com/FluxML/Flux.jl/blob/master/NEWS.md)
- [Commits](FluxML/Flux.jl@v0.1.0...v0.16.10)

---
updated-dependencies:
- dependency-name: Flux
  dependency-version: 0.16.10
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

docs/Project.toml

@@ -6,3 +6,6 @@ Literate = "98b081ad-f1c9-55d3-8b20-4c87d4299306"
 Flux = "587475ba-b771-5e3f-ad9e-33799f191a9c"
 MLUtils = "f1d291b0-491e-4a28-83b9-f70985020b54"
 Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
+
+[compat]
+Flux = "0.16.10"