Update pythainlp.el docs

Author: wannaphong

pythainlp/el/core.py

@@ -23,6 +23,9 @@ def __init__(self, model_name:str="bela", device:str="cuda", tag:str="wikidata")
         :param str model_name: model name (bela)
         :param str device: device for running model
         :param str tag: Entity linking tag (wikidata)
+
+        You can read about bela model at `https://github.com/PyThaiNLP/MultiEL \
+        <https://github.com/PyThaiNLP/MultiEL>`_.
         """
         self.model_name = model_name
         self.device = device
@@ -54,4 +57,4 @@ def get_el(self, list_text:Union[List[str], str])->Union[List[dict], str]:
                 # 'md_scores': [0.30301809310913086, 0.6399497389793396],
                 # 'el_scores': [0.7142490744590759, 0.8657019734382629]}]
         """
-        return self.model.process_batch(list_text)
+        return self.model.process_batch(list_text)