spec: close tag

Close an "a" tag. While we are here, fix some escapes.

Change-Id: I16040eff0d4beeef6230aec8fcf4315f0efd13a4
GitHub-Last-Rev: 3ba7b9f
GitHub-Pull-Request: #75760
Reviewed-on: https://go-review.googlesource.com/c/go/+/708517
Reviewed-by: Sean Liao <sean@liao.dev>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Sean Liao <sean@liao.dev>

Author: eikemeier

doc/go_spec.html

@@ -3173,7 +3173,7 @@ <h3 id="Composite_literals">Composite literals</h3>
 
 <p>
 Unless the LiteralType is a type parameter,
-its <a href="#Underlying_types">underlying type
+its <a href="#Underlying_types">underlying type</a>
 must be a struct, array, slice, or map type
 (the syntax enforces this constraint except when the type is given
 as a TypeName).
@@ -4873,7 +4873,7 @@ <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)) && ((<-chanInt) > 0)
+x == y+1 &amp;&amp; &lt;-chanInt &gt; 0  // (x == (y+1)) && ((&lt;-chanInt) > 0)
 </pre>
 
 
@@ -6635,7 +6635,7 @@ <h4 id="For_clause">For statements with <code>for</code> clause</h4>
 
 <pre>
 var prints []func()
-for i := 0; i < 5; i++ {
+for i := 0; i &lt; 5; i++ {
 	prints = append(prints, func() { println(i) })
 	i++
 }
@@ -6772,7 +6772,7 @@ <h4 id="For_range">For statements with <code>range</code> clause</h4>
 variable, which must be of integer type.
 Otherwise, if the iteration variable is declared by the "range" clause or is absent,
 the type of the iteration values is the <a href="#Constants">default type</a> for <code>n</code>.
-If <code>n</code> &lt= 0, the loop does not run any iterations.
+If <code>n</code> &lt;= 0, the loop does not run any iterations.
 </li>
 
 <li>
@@ -7799,7 +7799,7 @@ <h3 id="Min_and_max">Min and max</h3>
 </p>
 
 <pre>
-min(x, y)    == if x <= y then x else y
+min(x, y)    == if x &lt;= y then x else y
 min(x, y, z) == min(min(x, y), z)
 </pre>