Update pull_request_template.md (#326)

.github/pull_request_template.md

@@ -3,7 +3,7 @@
 ### Checklist
 
 - [ ] My model has a model sheet, report, or similar
-- [ ] My model has a reference implementation in [`mteb/models/`](https://github.com/embeddings-benchmark/mteb/tree/main/mteb/models), this can be as an API. Instruction on how to add a model can be found [here](https://github.com/embeddings-benchmark/mteb/blob/main/docs/reproducible_workflow.md) 
+- [ ] My model has a reference implementation in [`mteb/models/model_implementations/`](https://github.com/embeddings-benchmark/mteb/tree/main/mteb/models/model_implementations), this can be as an API. Instruction on how to add a model can be found [here](https://embeddings-benchmark.github.io/mteb/contributing/adding_a_model/) 
   - [ ] No, but there is an existing PR ___
 - [ ] The results submitted are obtained using the reference implementation
 - [ ] My model is available, either as a publicly accessible API or publicly on e.g., Huggingface