add text for users

sec_intro.tex

@@ -1,6 +1,7 @@
 \section{Summary} \label{sec:mem}
 
-The three main takeaways for Rubin Data Management regarding Special Programs are:
+The three main takeaways for Rubin Data Management regarding Special Programs,
+and a fourth takeaway that is a message mainly for Rubin users, are:
 
 \begin{enumerate}
 
@@ -18,8 +19,13 @@ \section{Summary} \label{sec:mem}
 alerts \emph{should} be, in support of time domain and Solar System science goals.
 (Section~\ref{ssec:sci_pproc})
 
+\item There will be cases where User-Generated Processing is required to meet
+science goals from Special Programs.
+(Section~\ref{ssec:proc_user})
+
 \end{enumerate}
 
+
 \section{Terms and Definitions}\label{sec:intro}
 
 The following is an introduction to the key terms related to Special Programs.
@@ -95,7 +101,7 @@ \subsection{Special Programs}
 in the same way as data products from the Main Survey.
 
 Some science goals for Special Programs can be met with standard processing,
-but some will require Special Processing by Rubin Data Management or user-generated processing.
+but some will require Special Processing by Rubin Data Management or User-Generated processing.
 
 \subsection{Special Processing}
 
@@ -140,9 +146,8 @@ \subsection{User-Generated Processing}
 or computational capacities which are beyond the Rubin-provided
 computational resources (Section~\ref{ssec:sci_comp}).
 
-Guidelines for User-Generated Processing, and for user-generated data products
-that can be federated with the Rubin-product data products (i.e., joinable tables),
-is forthcoming.
+Further details such as Rubin-provided support for User-Generated Processing is discussed
+in Section~\ref{ssec:proc_user}.
 
 \subsection{Deep Drilling Field (DDF)}