Start of page highlighting GitHub discussion showing screenshots (#285)

* Start of page highlighting GitHub discussion showing screenshots

* Removed description, fixed typo and shrank the size of the image

Description text prints between the title and first header at
a larger size.  Between that and the size of the image the title
was pushed off the screen.

* Update page to better hightlight the purpose of the GitHub Discussion

* Update heading based on Paolo's feedback

Author: stumbo

content/en/software/screenshots/GitHubPostYourPicture.jpg

@@ -0,0 +1,15 @@
+---
+title: Gallery of Screenshots
+type: docs
+weight: 90
+--- 
+
+## Showcasing Medley in use
+
+Medley provides a rich palette for displaying information.  To highlight its flexibility we maintain a gallery of screenshots.  It shows some of the applications implemented within Medley and provides insight into how some users have customized their user interface.  In addition you can find more whimsical drawings created within the Medley environment.
+
+We invite you to browse our collection, draw inspiration from it and, if so desired, contribute your own screenshots highlighting how you use and experience Medley.
+
+{{< imgproc GitHubPostYourPicture Fit "1000x600">}} <a href="https://github.com/orgs/Interlisp/discussions/1097">Medley Screenshots on GitHub</a> {{< /imgproc >}}
+
+Note:  A GitHub account is required to access this page.