[css-anchor-position-1] Fix typo

Author: fantasai

css-anchor-position-1/Overview.bs

@@ -1479,7 +1479,7 @@ Once an option has been chosen,
 the element keeps those styles until it overflows again,
 even if an earlier (and presumably more desirable)
 option again becomes available without causing overflow.
-(See [=remember or forget the last successful position option=].)
+(See [=record the last successful position option=].)
 
 <div class=example>
 	For example,