Apply @TallTed editorial suggestions on §2.1 WAC/ACP framing

Apply the two suggestion comments on PR #783:
- Three-item list 'WAC, ACP, or both'; comma after 'In practice';
  scope the interop sentence explicitly to single-language Clients;
  'requirements satisfied by each'.
- Parallelise the ACP composition clause: 'rules composed via …'.

Co-authored-by: Ted Thibodeau Jr <tthibodeau@openlinksw.com>

Author: jeswr

solid26.html

@@ -382,10 +382,10 @@ <h3>Solid Protocol</h3>
                     </li>
                     <li>
                       <p>
-                        The Solid Protocol requires Servers to conform to Web Access Control (<a href="#web-access-control">WAC</a>) or Access Control Policy (<a href="#access-control-policy">ACP</a>), or both, and requires Clients to conform to both. In practice Clients typically conform to one. A Client that needs to read or write access-control rules will not interoperate with a Server that implements only the language the Client does not support; Clients that do not interact with access-control rules are unaffected. Implementers choosing between the two should consider the requirements each satisfies.
+                        The Solid Protocol requires Servers to conform to Web Access Control (<a href="#web-access-control">WAC</a>), Access Control Policy (<a href="#access-control-policy">ACP</a>), or both, and requires Clients to conform to both. In practice, Clients typically conform to one. A Client that conforms to only one and needs to read or write access-control rules will not interoperate with a Server that implements only the language the Client does not support; Clients that do not interact with access-control rules are unaffected. Implementers choosing between the two should consider the requirements satisfied by each.
                       </p>
                       <p>WAC is the simpler and extensible access-control language, covering the cases used by most current Solid applications. Its policies are RDF with monotonic semantics &mdash; adding or removing triples preserves the truth of existing grants. Optional <code>acl:origin</code> matching is not intended as client identification [<cite><a class="bibref" href="#ref-wac">WAC</a></cite> § <a href="https://solidproject.org/TR/2024/wac-20240512#security-privacy-review">Security and Privacy Review</a>]. WAC does not express deny rules, application-aware matching beyond Origin, or conditional grants.</p>
-                      <p>ACP is the more expressive alternative, suited to requirements that go beyond what WAC can directly express. Policies can carry allow and deny rules in the same document with non-monotonic semantics, so a deny rule can override a prior allow. Subjects can additionally be identified by the <em>application</em> making the request via the <code>acp:client</code> matcher, and rules compose via <code>acp:allOf</code>, <code>acp:anyOf</code>, and <code>acp:noneOf</code>, supporting context-aware policies.</p>
+                      <p>ACP is the more expressive alternative, suited to requirements that go beyond what WAC can directly express. Policies can carry allow and deny rules in the same document with non-monotonic semantics, so a deny rule can override a prior allow. Subjects can additionally be identified by the <em>application</em> making the request via the <code>acp:client</code> matcher, and rules composed via <code>acp:allOf</code>, <code>acp:anyOf</code>, and <code>acp:noneOf</code>, supporting context-aware policies.</p>
                       <div class="note" id="note-survey">
                         <h4><span>Note</span></h4>
                         <p>The <a href="https://lists.w3.org/Archives/Public/public-solid/2026Mar/0019.html">March 2026 implementation survey</a> (<a href="https://github.com/w3c-cg/solid/blob/main/implementations/wac-acp.2026-04-01.csv">data</a>, <a href="https://web.archive.org/web/20260415092405/https://raw.githubusercontent.com/w3c-cg/solid/64d2c5383976b9e3a51f854576245dbb4bda1ce1/implementations/wac-acp.2026-04-01.csv">archived</a>):</p>