forgejo-repos: indentation errors

### Widget link

https://github.com/glanceapp/community-widgets/blob/main/widgets/forgejo-repos/README.md

### Description

Hi,
I was trying to use forgejo-repos today and realized that the entire sample file in the readme was slightly offset. Looks like double indention everywhere. I was just trying to copy and paste it into my glance setup when i noticed this. I made it work on my system, so i can put in a pr if this is an actual finding and not just me being clumsy with copy and paste. I just had ai scoot it all over for me.

Jenny

Open widgets/forgejo-repos/README.md from the linked community-widgets repository and inspect the sample configuration for the reported extra indentation. Correct the sample's indentation, then verify that it can be copied into a Glance setup without requiring manual adjustment.

Written by the indexing model from the issue text.