[resize-observer-1] Properly link to "calculate box size"

Author: Loirooriol

resize-observer-1/Overview.bs

@@ -445,14 +445,14 @@ run these steps:
 
 2. Set |this|.{{ResizeObserverEntry/target}} slot to |target|.
 
-3. Set |this|.{{ResizeObserverEntry/borderBoxSize}} slot to result of <a href="#calculate-box-size">
-            computing size given |target| and observedBox of "border-box"</a>.
+3. Set |this|.{{ResizeObserverEntry/borderBoxSize}} slot to result of <a>calculating box size</a>
+            given |target| and observedBox of {{"border-box"}}.
 
-4. Set |this|.{{ResizeObserverEntry/contentBoxSize}} slot to result of <a href="#calculate-box-size">
-            computing size given |target| and observedBox of "content-box"</a>.
+4. Set |this|.{{ResizeObserverEntry/contentBoxSize}} slot to result of <a>calculating box size</a>
+            given |target| and observedBox of {{"content-box"}}.
 
-5. Set |this|.{{ResizeObserverEntry/devicePixelContentBoxSize}} slot to result of <a href="#calculate-box-size">
-            computing size given |target| and observedBox of "device-pixel-content-box"</a>.
+5. Set |this|.{{ResizeObserverEntry/devicePixelContentBoxSize}} slot to result of <a>calculating box size</a>
+            given |target| and observedBox of {{"device-pixel-content-box"}}.
 
 6. Set |this|.{{ResizeObserverEntry/contentRect}} to logical |this|.{{ResizeObserverEntry/contentBoxSize}} given |target| and observedBox of "content-box".