Minor documentation updates

Author: guilgautier

src/graph/ising.jl

@@ -12,7 +12,7 @@ The [Ising model](https://en.wikipedia.org/wiki/Ising_model) characterizes a poi
         \exp(J x_i x_j)
 ```
 
-where ``(h_i)_{V}`` are called magnetization paremeters and ``J`` the interaction coefficient (``J \gtreqless 0`` characterizes ferro/antiferro magnetic interactions).
+where ``(h_i)_{i\in V}`` are called magnetization paremeters and ``J`` the interaction coefficient (``J \gtreqless 0`` characterizes ferro/antiferro magnetic interactions).
 
 # Example
 

src/graph/sink_free_graph.jl

@@ -3,6 +3,10 @@
 
 Concrete type representing a point process on the edges of a `graph` characterizing the uniform distribution on the orientations of the edges conditioned on the absence of sinks.
 
+**See also**
+
+- Section 4.1 of [GuJeLi19](@cite).
+
 # Example
 
 A realization from a ``5\\times 5`` grid graph

src/spatial/strauss.jl

@@ -1,7 +1,7 @@
 @doc raw"""
     StraussPointProcess{T<:Vector{Float64}} <: AbstractSpatialPointProcess{T}
 
-Spatial point process with density (w.r.t. the homogenous Poisson point process with unit intensity) given by
+Spatial point process with density (w.r.t. the homogenous Poisson point process with unit intensity) proportional to
 
 ```math
     \prod_{x \in X}