Fix minor "lead" => "led" typo.

Author: gkellogg

spec/latest/json-ld/index.html

@@ -1196,7 +1196,7 @@ <h2>Compact IRIs</h2>
     URI <a data-cite="RFC3986#section-2.2">gen-delim</a> character (e.g, <code>/</code>,
     <code>#</code> and others, see [[!RFC3986]]).
     <span class="note">The previous specification allows any term to be chosen as
-      a compact IRI prefix, which lead to a poor experience.</span></p>
+      a compact IRI prefix, which led to a poor experience.</span></p>
 
   <p class="changed">In JSON-LD 1.1, terms may be chosen as <a>compact IRI</a> prefixes
     when compacting only if