doc code fix

Author: TorkelE

docs/src/model_creation/dsl_advanced.md

@@ -557,7 +557,7 @@ latexify(rn; form = :ode)
 ```
 
 It is possible to remove the substrate contribution by using any of the following non-filled arrows when declaring the reaction: `<=`, `⇐`, `⟽`, `=>`, `⇒`, `⟾`, `⇔`, `⟺`. This means that the reaction
-```@example faq7
+```@example dsl_advanced_disable_ma
 rn = @reaction_network begin
   k, X => ∅
 end
@@ -566,7 +566,7 @@ latexify(rn; form = :ode)
 will occur at rate $d[X]/dt = -k$ (which might become a problem since $[X]$ will be degraded at a constant rate even when very small or equal to 0). This functionality allows the user to fully customise the ODEs generated by their models. 
 
 Note, stoichiometric coefficients are still included, i.e. the reaction
-```@example faq7
+```@example dsl_advanced_disable_ma
 rn = @reaction_network begin
   k, 2*X ⇒ ∅
 end