Add missing `trust_remote_code=True` for Sentence Transformers

Hello!

Very exciting work! I'm preparing some comms as well. I noticed a `trust_remote_code=True` was missing, which is required to load a custom module from this repository to the users' devices.

- Tom Aarsen

README.md

@@ -184,7 +184,7 @@ pip install -U sentence-transformers
 
 ```python
 from sentence_transformers import SparseEncoder
-model = SparseEncoder("Linkup-Platform/linkup-sparseup-embed-v1")
+model = SparseEncoder("Linkup-Platform/linkup-sparseup-embed-v1", trust_remote_code=True)
 queries = [
     "England football player highest paid",
     "NYC capital which country?",