fix more suggestions

Author: vyudu

docs/src/api/network_analysis_api.md

@@ -4,7 +4,8 @@ CurrentModule = Catalyst
 ```
 
 Note, currently API functions for network analysis and conservation law analysis
-do not work with constant species (currently only generated by SBMLToolkit).
+do not work with constant species (which are generated by SBML, and can be [declared
+in Catalyst as well](@ref dsl_advanced_options_constant_species).
 
 For more information about these functions, please see the sections of the docs on
 [network ODE representation](@ref network_analysis_odes) and [chemical reaction network theory](@ref network_analysis_structural_aspects).

docs/src/network_analysis/odes.md

@@ -8,7 +8,8 @@ the exported functions is given in the API section [Network Analysis and Represe
 Network Theory*[^1] for more discussion about the concepts on this page.
 
 Note, currently API functions for network analysis and conservation law analysis
-do not work with constant species (currently only generated by SBMLToolkit).
+do not work with constant species (which are generated by SBML, and can be [declared
+in Catalyst as well](@ref dsl_advanced_options_constant_species).
 
 ## [Network representation of the Repressilator `ReactionSystem`](@id network_analysis_repressilator_representation)
 We first load Catalyst and construct our model of the repressilator
@@ -29,7 +30,7 @@ repressilator = @reaction_network Repressilator begin
        μ, P₃ --> ∅
 end
 ```
-In the [Introduction to Catalyst](@ref introduction_to_catalyst)
+In the [Model Visualization](@ref visualisation_graphs)
 tutorial we showed how the above network could be visualized as a
 species-reaction graph. There, species are represented by the nodes of the graph
 and edges show the reactions in which a given species is a substrate or product.