Docs need some proof reading

[abpolym]

I found a mention of ForneyLab in the docs as shown below:

I can imagine that reading through the docs will lead to discovery of more errors in the docs :)

[SebastianCallh]

There is also a mention of ReactiveMP in this section https://biaslab.github.io/RxInfer.jl/stable/examples/Invertible%20Neural%20Network%20Tutorial/#Probabilistic-inference