fix syntax in spec

Refs #10

Author: xtuc

spec.html

@@ -78,7 +78,7 @@ <h1>Runtime Semantics: HostResolveImportedModule ( _referencingScriptOrModule_,
 
 
     <emu-note type=editor>
-      <p><ins>The above text implies that hosts *must* support JSON modules imported with `type: "json"` (if it completes normally), but it doesn't prohibit hosts from supporting JSON modules imported with no type specified. Some environments (for example, web browsers) are expected to require `if { type: "json" }`, and environments which want to restrict themselves to a compatible subset would do so as well.</ins></p>
+      <p><ins>The above text implies that hosts *must* support JSON modules imported with `type: "json"` (if it completes normally), but it doesn't prohibit hosts from supporting JSON modules imported with no type specified. Some environments (for example, web browsers) are expected to require `assert { type: "json" }`, and environments which want to restrict themselves to a compatible subset would do so as well.</ins></p>
     </emu-note>
 
     <emu-note type=editor>