change section title

Author: aaronpeikert

presentation.tex

@@ -330,7 +330,7 @@
     \begin{frame}[c]
       \centering{
       \huge
-        \only<1>{Less Abstract}
+        \only<1>{More Concrete}
         \only<2>{
           \href{https://structuralequationmodels.github.io/StructuralEquationModels.jl/dev/}{
           \textcolor[rgb]{0.796,0.235,0.2}{Structural}\textcolor[rgb]{0.22,0.596,0.149}{Equation}\textcolor[rgb]{0.584,0.345,0.698}{Models}\textcolor[rgb]{0.251,0.388,0.847}{.jl}