Don't show line numbers for one line code examples.

docs/options.html

@@ -69,7 +69,7 @@ $.fn.select2.amd.require(
         This means that if you declare your <code>&lt;select&gt;</code> tag as...
       </p>
 
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 &lt;select data-tags="true" data-placeholder="Select an option"&gt;&lt;/select&gt;
 </pre>
 
@@ -93,7 +93,7 @@ $("select").select2({
         <a href="https://github.com/select2/select2/issues/2969">do not work in jQuery 1.x</a>.
       </p>
 
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 &lt;select data-ajax--url="http://example.org/api/test" data-ajax--cache="true"&gt;&lt;/select&gt;
 </pre>
 
@@ -226,8 +226,8 @@ $("select").select2({
         placeholders.
       </p>
 
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-placeholder: "Select a repository",
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+placeholder: "Select a repository"
 </pre>
 
       <p>
@@ -1409,7 +1409,7 @@ DataAdapter.query = function (params, callback) {
         string.
       </p>
 
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 $.fn.select2.defaults.set("theme", "classic");
 </pre>