README: Fix markdown display of code

DannyS712 · DannyS712 · commit 2dfd04257fd9 · 2020-05-20T16:06:37.000Z
Change-Id: Ibc194d9e198267d4851e32b83ffbd7a9cb7d2e97
diff --git a/README.md b/README.md
@@ -16,13 +16,15 @@ Additional documentation about the library can be found on
 Usage
 -----
 
-    // Reading a CDB file
-    $cdb = Cdb\Reader::open( 'db.cdb' );
-    $foo = $cdb->get( 'somekey' );
-
-    // Writing to a CDB file
-    $cdb = Cdb\Writer::open( 'anotherdb.cdb' );
-    $cdb->set( 'somekey', $foo );
+```php
+// Reading a CDB file
+$cdb = Cdb\Reader::open( 'db.cdb' );
+$foo = $cdb->get( 'somekey' );
+
+// Writing to a CDB file
+$cdb = Cdb\Writer::open( 'anotherdb.cdb' );
+$cdb->set( 'somekey', $foo );
+```
 
     // Using the CLI
     $ cdb ./myfile.cdb [get|list|match] <parameter>
