safety-tags: typo

Author: zjp-CN

text/0000-safety-tags.md

@@ -141,7 +141,7 @@ LLL | unsafe { ptr::read(ptr) }
 The process of verifying whether a tag is absent is referred to as tag discharge.
 
 Note that it's allowed to discharge tags of unsafe callees onto the unsafe caller for unsafe
-encapsulation:
+delegation or propogation:
 
 ```rust
 #[clippy::safety { ValidPtr, Aligned, Initialized }] // ✅