Update README.md

I noticed after the submission deadline that the official tag format uses entries like `track:wood` and `achievement:offbrand`.

The submitted Space was completed before the deadline and is running here:
If maintainers can still map tags manually, OpenCortex should be considered for:
- track:backyard-ai
- sponsor:openbmb
- sponsor:nvidia
- sponsor:modal
- achievement:offgrid
- achievement:offbrand
- achievement:llama

README.md

@@ -9,7 +9,13 @@ app_file: app.py
 pinned: false
 license: mit
 tags:
-  - build-small-hackathon
+  - track:backyard-ai
+  - sponsor:openbmb
+  - sponsor:nvidia
+  - sponsor:modal
+  - achievement:offgrid
+  - achievement:offbrand
+  - achievement:llama
   - backyard-ai
   - off-brand
   - tiny-titan