Update parametric_stoichiometry.md

Author: isaacsas

docs/src/catalyst_functionality/parametric_stoichiometry.md

@@ -3,8 +3,6 @@ Catalyst supports stoichiometric coefficients that involve parameters, species,
 or even general expressions. In this tutorial we show several examples of how to
 use symbolic stoichiometries, and discuss several caveats to be aware of.
 
-*Note, this tutorial requires ModelingToolkit v8.5.4 or greater to work properly.*
-
 ## Using symbolic stoichiometry
 Let's first consider a simple reversible reaction where the number of reactants
 is a parameter, and the number of products is the product of two parameters.
@@ -193,4 +191,4 @@ psim_mean = getmean(jprob, 20000, tv)
 plot(tv, psim_mean; ylabel = "average of P(t)", xlabel = "time",
                     xlim = (0.0,6.0), legend = false)
 ```
-Comparing, we see similar averages for `P(t)`.
+Comparing, we see similar averages for `P(t)`.