Add Venn Diagram Support

[shmeezshmeez]

I've been exploring the "Show Me" plugin and appreciate its ability to easily create diagrams. However, I noticed it currently does not support the creation of Venn diagrams, a powerful tool for visualizing the overlap and distinctions among groups of items.

Proposed Implementation Suggestions:

Understand the Diagram Structure: Venn diagrams typically visualize the relationships between different sets. The overlapping areas show common elements between the sets.

Choose a Rendering Library: There are a few libraries available that could support Venn diagrams such as d3.js, Google Charts, or venn.js. The selection could be based on factors such as ease of use, compatibility with the current system, and community support.

Define the Syntax: A possible approach could be to define a syntax that allows users to specify the sets and their elements. For example, Venn Diagram: Set A: a, b, c; Set B: b, c, d; Set C: c, d, e.

Parse the Syntax: The user input could be parsed to extract the necessary data to create the Venn diagram.

Generate the Diagram: The selected library could be used to generate the Venn diagram based on the parsed data.

Handle Errors: It would be crucial to handle exceptions and errors where the user's input might not be parsed correctly or a diagram cannot be generated. User-friendly error messages would enhance the user experience.

Testing: Any new feature should be tested to ensure it works as expected and does not introduce bugs.

Documentation: It would be helpful to update the plugin's documentation to include instructions on how to use the Venn diagram feature, along with examples.

These are just suggestions and I understand that the actual implementation might differ based on a variety of factors.

I am interested in contributing to the implementation of this feature and would appreciate the opportunity to discuss this further. Please let me know how I might be able to assist.