feat: changed doc_file to docx and update readme (#157)

embedchain/loaders/docx_file.py

@@ -0,0 +1,12 @@
+from langchain.document_loaders import Docx2txtLoader
+
+class DocxFileLoader:
+    def load_data(self, url):
+        loader = Docx2txtLoader(url)
+        output = []
+        data = loader.load()
+        content = data[0].page_content
+        meta_data = data[0].metadata
+        meta_data["url"] = "local"
+        output.append({"content": content, "meta_data": meta_data})
+        return output