Update README

Author: danbraunai-goodfire

README.md

@@ -1,8 +1,8 @@
 # SPD - Stochastic Parameter Decomposition
-**Note: The [dev](https://github.com/goodfire-ai/spd/tree/dev) branch contains active work from Goodfire and collaborators since this paper's release. This is now an open source
-research project. Please feel free to view the issues (or add to them) and make a PR to the dev branch!**
+**Note: The [main](https://github.com/goodfire-ai/spd) branch contains active work from Goodfire and collaborators since this paper's release. This is now an open source
+research project. Please feel free to view the issues (or add to them) and make a PR!**
 
-The main branch contains code used in the paper [Stochastic Parameter Decomposition](https://arxiv.org/abs/2506.20790)
+The current branch (`spd-paper`) contains code used in the paper [Stochastic Parameter Decomposition](https://arxiv.org/abs/2506.20790).
 
 Weights and Bias [report](https://wandb.ai/goodfire/spd-tms/reports/SPD-paper-report--VmlldzoxMzE3NzU0MQ) accompanying the paper.