docstrings added

src/crewai/knowledge/knowledge_config.py

@@ -2,6 +2,13 @@ from pydantic import BaseModel, Field
 
 
 class KnowledgeConfig(BaseModel):
+    """Configuration for knowledge retrieval.
+
+    Args:
+        results_limit (int): The number of relevant documents to return.
+        score_threshold (float): The minimum score for a document to be considered relevant.
+    """
+
     results_limit: int = Field(default=3, description="The number of results to return")
     score_threshold: float = Field(
         default=0.35,