Use parskip pkg to set inter-para spacing

texmf/tex/latex/astron/astron.cls

@@ -14,11 +14,12 @@
 \setlength{\bottomMargin}{3.5cm}
 \setlength{\sideMargin}{2cm}
 
-\RequirePackage{graphicx}
-\RequirePackage{geometry}
+\RequirePackage[absolute]{textpos}
 \RequirePackage{fancyhdr}
+\RequirePackage{geometry}
+\RequirePackage{graphicx}
 \RequirePackage{lastpage}
-\RequirePackage[absolute]{textpos}
+\RequirePackage{parskip}
 \RequirePackage{tabularx}
 
 \geometry{tmargin=\topMargin,
@@ -27,9 +28,6 @@
           rmargin=\sideMargin,
           headheight=52.05211pt}
 
-\setlength{\parindent}{0cm}             % No indent at start of paragraphs
-\setlength{\parskip}{\baselineskip}     % Blank line between paragraph
-
 \newcommand{\docTitle}{Set the document title with \texttt{\textbackslash{}setDocTitle}}
 \newcommand{\setDocTitle}[1]{
    \renewcommand{\docTitle}{#1}