[css-view-transitions-1] Fix warnings, add issues for currently unfixable warnings (w3c#8005)

* Fix whitespace, markdown, and promise refs

* Consistent rendering opportunity references

* Create issues for things causing bikeshed warnings

Author: jakearchibald

css-view-transitions-1/Overview.bs

@@ -13,6 +13,7 @@ Editor: Tab Atkins-Bittner, Google, http://xanthir.com/contact/, w3cid 42199
 Editor: Jake Archibald, Google, w3cid 76394
 Editor: Khushal Sagar, Google, w3cid 122787
 Abstract: This module defines the View Transition API, along with associated properties and pseudo-elements.
+Markup Shorthands: css no, markdown yes
 </pre>
 
 <pre class=link-defaults>
@@ -21,6 +22,7 @@ spec:css-position-3; type:property
     text: inset-block-start
     text: inset-inline-start
 spec:css-shapes-3; type:function; text:rect()
+spec:webidl; type:interface; text:Promise
 </pre>
 
 <style>
@@ -59,7 +61,7 @@ This spec describes the CSS and JS mechanics of the single-page transition API.
 
 A key part of this API design is the view that an animated transition is an
 enhancement to a DOM change. Specifically, there are two components of the API:
-the DOM change, and the visual state animation. 
+the DOM change, and the visual state animation.
 
 In order for the user-agent to generate a set of snapshots prior to the DOM
 change, the API is designed to take the DOM change callback as part of the
@@ -484,7 +486,9 @@ callback UpdateDOMCallback = Promise<any> ();
 
     1. Set |document|'s [=active DOM transition=] to |transition|.
 
-        Note: The process continues in [=perform an outgoing capture=] which is executed at the next [=rendering-opportunity=].
+        Note: The process continues in [=perform an outgoing capture=] which is executed at the next [=rendering opportunity=].
+
+        Issue: Waiting on [html/8469](https://github.com/whatwg/html/pull/8468) to reference "rendering opportunity".
 
     1. Return |transition|.
 </div>
@@ -639,10 +643,12 @@ The {{ViewTransition/domUpdated}} [=getter steps=] are to return [=this's=] [=Vi
 
         Note: The aim is to prevent unintended DOM updates from being presented to the
         user after a cached snapshot for the elements has been captured. We wait for
-        one rendering opportunity after prepare to present DOM mutations made by the
+        one [=rendering opportunity=] after prepare to present DOM mutations made by the
         author before prepare to be presented to the user. This is also the content
         captured in snapshots.
 
+        Issue: Waiting on [html/8469](https://github.com/whatwg/html/pull/8468) to reference "rendering opportunity".
+
     Note: These steps will be added to the [=update the rendering=] in the HTML spec.
         As such, the prose style is written to match other steps in that algorithm.
 </div>
@@ -739,6 +745,8 @@ The {{ViewTransition/domUpdated}} [=getter steps=] are to return [=this's=] [=Vi
             Note: A task is queued here because the texture read back in [=capturing the image=] may be async,
                 although the render steps in the HTML spec act as if it's synchronous.
 
+            Issue: "DOM manipulation task source" doesn't link due to a [bikeshed bug](https://github.com/tabatkins/bikeshed/issues/2382).
+
         1. If |transition|'s [=ViewTransition/phase=] is "`done`", then abort these steps.
 
             Note: This happens if |transition| was [=skip the page transition|skipped=] before this point.
@@ -893,20 +901,26 @@ The {{ViewTransition/domUpdated}} [=getter steps=] are to return [=this's=] [=Vi
     To <dfn>update transition DOM</dfn> given a {{ViewTransition}} |transition|:
 
     1. Let |document| be |transition|'s [=relevant global object's=] [=associated document=].
-	
-	1. Let |hasActiveAnimations| be a boolean, initially false. For each [=page-transition pseudo-elements=]
-        associated with |transition|:
-    
+
+    1. Let |hasActiveAnimations| be a boolean, initially false.
+
+    1. For each [=page-transition pseudo-elements=] associated with |transition|:
+
         1. Let |element| be the [=page-transition pseudo-element=].
-    
-        1. For each |animation| that contains at least one [=animation effect=]
-            whose [=effect target=] is |element| and whose associated [=animation timeline=]
-            is of type [=document timeline=], set |hasActiveAnimations| to true if any of the
-            following conditions is true:
-            
-            1. |animation| is in <a lt="paused play state">paused</a> or <a lt="running play state">running</a> state.
-    
-            1. [=pending-animation-event-queue=] has any events associated with |animation|.
+
+        1. For each |animation| whose [=timeline=] is a [=document timeline=] associated with |document|,
+            and contains at least one [=animation/associated effect=] whose [=effect target=] is |element|,
+            set |hasActiveAnimations| to true if any of the following conditions is true:
+
+            Issue: The prose around "effect target" is incorrect, but [#8001](https://github.com/w3c/csswg-drafts/issues/8001) needs to land before it can be fixed.
+
+            - |animation|'s [=animation/play state=] is [=idle play state=] or [=running play state=].
+
+                Issue: These terms aren't linking due to [#8003](https://github.com/w3c/csswg-drafts/issues/8003).
+
+            - |document|'s [=pending animation event queue=] has any events associated with |animation|.
+
+                Issue: This prose isn't quite right, but it's blocked on [#8004](https://github.com/w3c/csswg-drafts/issues/8004).
 
     1. If |hasActiveAnimations| is false: