Fix project name (#43)

Author: stackoverflow

SECURITY.adoc

@@ -4,7 +4,7 @@ For the protection of our community, the Pkl team does not disclose, discuss, or
 
 == Reporting a security vulnerability
 
-If you have discovered a security vulnerability within the Pkl Pantry project, please report it to us.
+If you have discovered a security vulnerability within the Tree-sitter Pkl project, please report it to us.
 We welcome reports from everyone, including security researchers, developers, and users.
 
 Security vulnerabilities may be reported on the link:https://security.apple.com/submit[Report a vulnerability] form.