[css-anchor-position-1][editorial] Fixed Bikeshed errors

Author: SebastianZ

css-anchor-position-1/Overview.bs

@@ -114,7 +114,7 @@ to find the “best” one that avoids overlap/overflow.
 	Note that using the [[HTML#the-popover-attribute|Popover API]]
 	will automatically set 'position' and create the anchoring relationship
 	without setting 'anchor-name' or 'position-anchor' value
-	(by defining an [=implicit anchor=]),
+	(by defining an [=implicit anchor element=]),
 	so those properties wouldn't need to be explicitly set again.
 	So with the correct markup, this example can be simplified to:
 
@@ -717,7 +717,7 @@ by specifying the rows and columns the region occupies as follows:
 <dl dfn-type=value dfn-for="position-area, <position-area>">
 	: <dfn>start</dfn>, <dfn>end</dfn>, <dfn>self-start</dfn>, <dfn>self-end</dfn>
 	: <dfn>top</dfn>, <dfn>bottom</dfn>, <dfn>left</dfn>, <dfn>right</dfn>
-	: <dfn>y-start</dfn>, <dfn>y-end</dfn>, <dfn>self-x-start</dfn>, <dfn>self-y-end</dfn>
+	: <dfn>y-start</dfn>, <dfn>y-end</dfn>, <dfn>self-y-start</dfn>, <dfn>self-y-end</dfn>
 	: <dfn>x-start</dfn>, <dfn>x-end</dfn>, <dfn>self-x-start</dfn>, <dfn>self-x-end</dfn>
 	: <dfn>block-start</dfn>, <dfn>block-end</dfn>, <dfn>self-block-start</dfn>, <dfn>self-block-end</dfn>
 	: <dfn>inline-start</dfn>, <dfn>inline-end</dfn>, <dfn>self-inline-start</dfn>, <dfn>self-inline-end</dfn>
@@ -1368,7 +1368,7 @@ it is aligned as per ''align-self/center''.
 █▌  █▌ ████▌  ███▌   ▐▌    █▌   ████   █▌     ▐█
 █████▌           █▌  ▐▌   █     █▌     █▌     ▐█
 █▌  █▌       █▌  █▌  ▐▌  █      █▌      █▌   ▐█ 
-█▌  █▌        ███▌  ████ █████▌ █████▌   ██ ██  
+█▌  █▌        ███▌  ████ █████▌ █████▌   ██ ██
 -->
 
 Anchor-Based Sizing {#sizing}