\documentclass[a4paper,12pt]{article}
\begin{document}

% Here we see how to adjust the spacing
% in between the paragraphs and remove the indent 

\begin {center}
\bf\LARGE {The Heading}
\end{center}

\section*{1.0  Section Heading}

\subsection*{1.1  Subsection Heading} 

The is the sample paragrah following it.  Note that this 
paragraph is not indented.  But the following paragraph
will be indented

\vspace{5 mm}
\noindent
In the previous lesson we saw how to put heading.  Here we are 
going to see how to properly put paragraphs in the section.

\end{document}