I'm new to Latex and need to create some tables with captions. I looked at the examples available here: <https://www.sharelatex.com/project/5aa15ef4ecc7bf1bc277d160>
but when I try to use captions in my own code, the compiler throws the error `LaTeX Error: \caption outside float.`
This is my code:

```
\usepackage{tabu}

\begin{center}
 \begin{tabular}{|p{0.4cm}||p{4.3cm}|p{4.3cm}|p{4.3cm}|} 
 \hline
 Id & Inclusion/Exclusion & Description & Motivation \\ [0.5ex] 
 \hline\hline
 X & X. & XX \\ [1ex] 
 \hline
\end{tabular}
\caption{Table 1: The criteria.} % Error here!
\label{table:1}
\end{center}

```

Also if I try to reference the table, like this:

```
The table \ref{table:1} is an example of referenced

```

The table referenced is displayed as number 3 even though I only have one single table.