Sync docs from master to gh-pages

spring-cloud-contract.html

@@ -1274,7 +1274,7 @@ section, contract will get generated and a documentation file too.</p>
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-<pre>import org.springframework.cloud.contract.spec.Contract
+<pre class="highlight"><code class="language-groovy" data-lang="groovy">import org.springframework.cloud.contract.spec.Contract
 
 Contract.make {
     request {
@@ -1303,7 +1303,7 @@ Contract.make {
             jsonPath('$[?(@.foo &gt;= 20)]', byType())
         }
     }
-}</pre>
+}</code></pre>
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