Update README.md

Fix typo: "#woostockAI" should be "#woodstockAI", unless the hashtag on Twitter is wrong.

README.md

@@ -14,7 +14,7 @@ Some press coverage of the event:
 https://venturebeat.com/ai/hugging-face-hosts-woodstock-of-ai-emerges-as-leading-voice-for-open-source-ai-development
 https://www.axios.com/2023/04/03/san-francisco-ai-party-woodstock-mantle
 
-Also, check out the hashtag #woostockAI for more pictures and videos: https://twitter.com/search?q=woodstockai&src=typed_query
+Also, check out the hashtag #woodstockAI for more pictures and videos: https://twitter.com/search?q=woodstockai&src=typed_query
 
 # Thanks everyone and long life to Open Science and Open Source AI!