LaTeX.org

I am new to LATEx and never used before. I tried all your suggestions by keeping it at all places and also seen other examples but still same problem..
Can you edit my code given above..

@article{Reference1,
Abstract = {Quality control is of utmost importance in the metal industry.},
Author = {Julio Molleda, Rubén Usamentiaga, Daniel F. García},
Journal = {IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS},
Month = {JULY/AUGUST},
Number = {4},
Numpages = {3},
Pages = {1-9},
Title ...

I am following this sequence of code.
\documentclass[12pt]{article}

\title{Three Dimentional Surface Inspection Using Laser Triangulation}
\author{Lalit Patil\\ M. S. University of Baroda}
\date{\today\\ Department of Electrical Engineering\\ Automatic Control and Robotics}

\begin{document ...

Here in below code after last line I want to add and image. So, how to do that in the script?
\documentclass[12pt]{article}

\begin{document}
\tableofcontents

\section{Advantages}

\subsection{Application Areas}
Comparison of actual data with nominal data

Mold and Toolmaking

Tool ...

Here you can see that "Quality Control/Inspection" is at left side in generated PDF, and other content is displaced by some space.
\documentclass[12pt]{article}

\begin{document}
\tableofcontents

\section{Advantages}

\subsubsection{Application Areas}
Quality Control / Inspection

Comparison of ...

Hi,

this is my code I have posted here.
\documentclass[12pt]{article}

\begin{document}

\tableofcontents

\section{Advantages}
Innovative

This project uses ...

Easy

Camera sensor...

Fast

3D data acquisition...

Accurate

Delivering excellent...
\end{document}
There are four main headings ...