Update README.md

Author: Andrey Safonov

README.md

@@ -54,7 +54,7 @@ The endpoint converts the PDF to an optimized PDF to be used with [PDFTron WebVi
 Returns text from a PDF at a specified page number.
 
 ##### HTTP Request
-`GET http://localhost:9000/optimize/:filename-:pagenumber`
+`GET http://localhost:9000/textextract/:filename-:pagenumber`