There are two approaches to adding custom info to the task pane.
1. develop an API add-in,
2. edit the existing html file that's presented in the task pane. You'll need an appreciation of markup and js as its trickier than you'd like. I am fairly proficient with website creation yet it still took me 2-3 days to filter and decipher the file located at;
\SolidWorks Corp\SolidWorks\data\taskpane\solidworks resources\swresources.html
Make a backup.
Thank you for your input. I am actually looking for an Add-In sample showing how to show a web page in the Task Pane.