Fix typo

public-apps/welcome.livemd

@@ -40,7 +40,7 @@ be in the "public-apps" directory of your Spaces repository.
 
 To deploy your own notebook on Hugging Face, you must click the
 <i class="ri-livebook-deploy"></i> icon on the notebook sidebar, set a "Slug"
-for the notebook, mark it as public. and then drop its `.livemd` file into
+for the notebook, mark it as public and then drop its `.livemd` file into
 the "public-apps" directory of your Spaces repo.
 """)
 ```