helped post dark sky slider

Helped Katrina with the web posting. Her attempts at adding a "slider" image to the RASC Toronto Centre home page were not working. Postings just disappeared. I logged in. Saw no history for today. I made a quick post, grabbed a shot by Bill of the Double Cluster, and tried previewing. It reminded me I need a URL cross-reference link. Added that and some good segue text. Set the time to late tonight. Saved. It worked. Chatted with Katrina. I could not explain why it had not worked for her.

I then made a "feature" image, uploaded it, and replaced the full image.