upd docs a little bit

Author: voorhs

src/autointent/modules/scoring/_ptuning/ptuning.py

@@ -35,7 +35,7 @@ class PTuningScorer(BertScorer):
 
         from autointent.modules import PTuningScorer
         scorer = PTuningScorer(
-            classification_model_config="prajjwal1/bert-tiny",
+            classification_model_config="cointegrated/rubert-tiny2",
             num_train_epochs=3,
             batch_size=8,
             num_virtual_tokens=10,

user_guides/basic_usage/03_automl.py

@@ -118,7 +118,7 @@
 from autointent.configs import CrossEncoderConfig, TokenizerConfig, get_default_embedder_config
 
 # Configure embedding model (used for vector representations)
-custom_pipeline.set_config(get_default_embedder_config(model_name="prajjwal1/bert-tiny"))
+custom_pipeline.set_config(get_default_embedder_config(model_name="cointegrated/rubert-tiny2"))
 
 # Configure cross-encoder model (used for scoring text pairs)
 custom_pipeline.set_config(