langchain

2ec74fea - docs: update DoctranPropertyExtractor import path and fix typo (#31177)

docs: update DoctranPropertyExtractor import path and fix typo (#31177) **Description:** Updated the import path for `DoctranPropertyExtractor` from `langchain_community.document_loaders` to `langchain_community.document_transformers` in multiple locations to reflect recent package structure changes. Also corrected a minor typo in the word "variable". **Issue:** N/A **Dependencies:** N/A **LinkedIn handle:** For shout out if announced [Asif Mehmood](https://www.linkedin.com/in/asifmehmood1997/).