Fix typo in metadata and link paper

This PR fixes the spelling error in the "muiltimodal" tag to be "multimodal". It also ensures the relevant link to the paper is present.

README.md

@@ -1,20 +1,20 @@
 ---
+base_model:
+- deepseek-ai/Janus-Pro-7B
+datasets:
+- FreedomIntelligence/ShareGPT-4o-Image
+language:
+- en
+library_name: transformers
 license: mit
 license_name: deepseek
 license_link: LICENSE
 pipeline_tag: any-to-any
-library_name: transformers
 tags:
 - text-to-image
 - text-and-image-to-image
-- muiltimodal
+- multimodal
 - unified-model
-language:
-- en
-base_model:
-- deepseek-ai/Janus-Pro-7B
-datasets:
-- FreedomIntelligence/ShareGPT-4o-Image
 ---
 
 <div align="center">