Editorial: fix various grammar rendering issues with latest Emu

package.json

@@ -14,7 +14,7 @@
   "license": "SEE LICENSE IN https://tc39.github.io/ecma262/#sec-copyright-and-software-license",
   "homepage": "https://tc39.github.io/ecma262/",
   "dependencies": {
-    "ecmarkup": "^3.1.0"
+    "ecmarkup": "^3.1.1"
   },
   "devDependencies": {
     "@alrra/travis-scripts": "^2.0.0"

spec.html

@@ -27328,13 +27328,13 @@ <h2>Syntax</h2>
       <p>Each `\\u` |TrailSurrogate| for which the choice of associated `u` |LeadSurrogate| is ambiguous shall be associated with the nearest possible `u` |LeadSurrogate| that would otherwise have no corresponding `\\u` |TrailSurrogate|.</p>
       <emu-grammar>
         LeadSurrogate ::
-          Hex4Digits [match only if the SV of Hex4Digits is in the inclusive range 0xD800 to 0xDBFF]
+          Hex4Digits [> match only if the SV of |Hex4Digits| is in the inclusive range 0xD800 to 0xDBFF]
 
         TrailSurrogate ::
-          Hex4Digits [match only if the SV of Hex4Digits is in the inclusive range 0xDC00 to 0xDFFF]
+          Hex4Digits [> match only if the SV of |Hex4Digits| is in the inclusive range 0xDC00 to 0xDFFF]
 
         NonSurrogate ::
-          Hex4Digits [match only if the SV of Hex4Digits is not in the inclusive range 0xD800 to 0xDFFF]
+          Hex4Digits [> match only if the SV of |Hex4Digits| is not in the inclusive range 0xD800 to 0xDFFF]
 
         IdentityEscape[U] ::
           [+U] SyntaxCharacter
@@ -35903,7 +35903,7 @@ <h2>Syntax</h2>
           [+U] DecimalEscape
           [+U] CharacterEscape[U]
           [+U] CharacterClassEscape
-          [~U] DecimalEscape but only if the integer value of DecimalEscape is &lt;= _NcapturingParens_
+          [~U] DecimalEscape [> but only if the integer value of DecimalEscape is &lt;= _NcapturingParens_]
           [~U] CharacterClassEscape
           [~U] CharacterEscape
 
@@ -35954,7 +35954,7 @@ <h2>Syntax</h2>
           [+U] CharacterEscape[U]
           [+U] CharacterClassEscape
           [+U] `-`
-          [~U] DecimalEscape but only if the integer value of DecimalEscape is 0
+          [~U] DecimalEscape [> but only if the integer value of |DecimalEscape| is 0]
           [~U] CharacterClassEscape
           [~U] `c` ClassControlLetter
           [~U] CharacterEscape
@@ -36028,7 +36028,7 @@ <h1>Pattern Semantics</h1>
         <p>The production <emu-grammar>ClassAtomNoDashInRange :: SourceCharacter but not one of `]` or `-`</emu-grammar> evaluates by returning a one-element CharSet containing the character represented by |SourceCharacter|.</p>
 
         <p>ClassEscape (<emu-xref href="#sec-classescape"></emu-xref>) includes the following additional evaluation rules:</p>
-        <p>The production <emu-grammar>ClassEscape :: DecimalEscape but only if &hellip;</emu-grammar> evaluates as follows:</p>
+        <p>The production <emu-grammar>ClassEscape :: DecimalEscape [> but only if &hellip;]</emu-grammar> evaluates as follows:</p>
         <emu-alg>
           1. Evaluate |DecimalEscape| to obtain an EscapeValue _E_.
           1. Assert: _E_ is a character.