Update simplet2i.py (#228)

Typo causing bug when preinitializing the model. Unsupported Sampler: klms, Defaulting to plms

Author: spezialspezial

ldm/simplet2i.py

@@ -124,7 +124,7 @@ def __init__(
         grid=False,
         width=512,
         height=512,
-        sampler_name='klms',
+        sampler_name='k_lms',
         latent_channels=4,
         downsampling_factor=8,
         ddim_eta=0.0,  # deterministic