Update documentation for specifying connection pools

[daust]

Feature enhancement from @agrlica:
Add Javadoc support on connection pool :)

What exactly do you mean by that? Should I simply update the Customization.md file?

[agrlica]

Hi Dietmar,

by Javadoc, I meant a library to extract documentation from PL/SQL code.
https://plsql-md-doc.readthedocs.io/en/latest/javadoc/

Example:

/**
 * Comments about a procedure or function
 *
 * Some tags (using the @tag notation)
 * @param p_x description of variable x
 * @param p_y description of variable y
 */
procedure some_proc(p_x in varchar2, p_y in varchar2)

Since I use that syntax for almost all projects, it would be great if I could generate HTML documentation directly to the SVN folder with one click.