add spaces to render code samples correctly in docs [deploy site]

Author: harsha509

examples/java/src/test/java/dev/selenium/browsers/FirefoxTest.java

@@ -124,6 +124,7 @@ public void setProfileLocation() {
     Assertions.assertTrue(location.contains(profileDirectory.getAbsolutePath()));
   }
 
+
   @Test
   public void installAddon() {
     driver = startFirefoxDriver();
@@ -137,6 +138,7 @@ public void installAddon() {
         "Content injected by webextensions-selenium-example", injected.getText());
   }
 
+
   @Test
   public void uninstallAddon() {
     driver = startFirefoxDriver();
@@ -149,6 +151,7 @@ public void uninstallAddon() {
     Assertions.assertEquals(driver.findElements(By.id("webextensions-selenium-example")).size(), 0);
   }
 
+
   @Test
   public void installUnsignedAddonPath() {
     driver = startFirefoxDriver();