Apply suggestions from code review

Co-authored-by: Henrik Tidefelt <henrikt@wolfram.com>

chapters/equations.tex

@@ -820,10 +820,10 @@ \section{Initialization, initial equation, and initial algorithm}\label{initiali
 It may be difficult for a user to figure out how many initial equations have to be added, especially if the system has a higher index.
 \end{nonnormative}
 
-Based on these non-normative considerations we have the following rules.
+These non-normative considerations are addressed as follows.
 A tool may add or remove initial equations automatically according to the rules below such that the resulting system is structurally nonsingular:
 \begin{itemize}
-\item A missing initial value of a discrete-time variable (see \cref{component-variability-prefixes-discrete-parameter-constant} -- this does not include parameter and constant variables -- which does not influence the simulation result, may be automatically set to the start value or its default without informing the user.
+\item A missing initial value of a discrete-time variable (see \cref{component-variability-prefixes-discrete-parameter-constant} -- this does not include parameter and constant variables) which does not influence the simulation result, may be automatically set to the start value or its default without informing the user.
 For example, variables assigned in a \lstinline!when!-clause which are not accessed outside of the \lstinline!when!-clause and where \lstinline!pre! is not explicitly used on these variables, do not have an effect on the simulation.
 \item A \lstinline!start!-attribute that is not fixed may be treated as fixed with a diagnostic.
 \item A consistent start value or initial equation may be removed with a diagnostic.