Update CHANGELOG [run doc]

Author: DevinTDHa

CHANGELOG

@@ -1,3 +1,22 @@
+=======
+6.0.0
+=======
+----------------
+New Features & Enhancements
+----------------
+* Introducing new Vision Language Models:
+  * SmolVLM (SPARKNLP-1115)
+  * PaliGemma + PaliGemma2 (SPARKNLP-1121)
+  * Gemma 3 (SPARKNLP-1124)
+
+* Adding additional parameters options to PDF Reader (SPARKNLP-1158)
+
+----------------
+Bug Fixes
+----------------
+* Fixed typo in Python for RoBertaForMultipleChoice (SPARKNLP-1177)
+* Fixing typos in various jupyter notebooks
+
 =======
 6.0.0
 =======