spec: escape double-ampersands

Change-Id: I7ce375f975a86e4c2494d2003aeb9b4a86caff3e
GitHub-Last-Rev: a368bc0
GitHub-Pull-Request: #76299
Reviewed-on: https://go-review.googlesource.com/c/go/+/720460
Auto-Submit: Sean Liao <[email protected]>
Reviewed-by: Keith Randall <[email protected]>
Reviewed-by: Mark Freeman <[email protected]>
Reviewed-by: Sean Liao <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>

Author: zigo101

doc/go_spec.html

@@ -4857,7 +4857,7 @@ <h4 id="Operator_precedence">Operator precedence</h4>
 x &lt;= f()                   // x &lt;= f()
 ^a &gt;&gt; b                    // (^a) >> b
 f() || g()                 // f() || g()
-x == y+1 &amp;&amp; &lt;-chanInt &gt; 0  // (x == (y+1)) && ((&lt;-chanInt) > 0)
+x == y+1 &amp;&amp; &lt;-chanInt &gt; 0  // (x == (y+1)) &amp;&amp; ((&lt;-chanInt) > 0)
 </pre>
 
 
@@ -6867,7 +6867,7 @@ <h4 id="For_range">For statements with <code>range</code> clause</h4>
 }
 
 func (t *Tree[K, V]) walk(yield func(key K, val V) bool) bool {
-	return t == nil || t.left.walk(yield) && yield(t.key, t.value) && t.right.walk(yield)
+	return t == nil || t.left.walk(yield) &amp;&amp; yield(t.key, t.value) &amp;&amp; t.right.walk(yield)
 }
 
 func (t *Tree[K, V]) Walk(yield func(key K, val V) bool) {