Update install information (#96)

Jean85 · mitsuhiko · commit 3947a83ce6fd · 2017-11-28T16:41:49.000+01:00
diff --git a/README.md b/README.md
@@ -41,16 +41,18 @@ class AppKernel extends Kernel
     {
         $bundles = array(
             // ...
-
-            new Sentry\SentryBundle\SentryBundle(),
         );
 
+        if (in_array($this->getEnvironment(), ['staging', 'prod'], true)) {
+            $bundles[] = new Sentry\SentryBundle\SentryBundle();
+        }
         // ...
     }
 
     // ...
 }
 ```
+Note that, with this snippet of code, the bundle will be enabled only for the `staging` and `prod` environment; adjust it to your neeeds. It's discouraged to enable this bundle in the `test` environment, because the Sentry client will change the error handler, which is already used by other packages like Symfony's deprecation handler (see [#46](https://github.com/getsentry/sentry-symfony/issues/46) and [#95](https://github.com/getsentry/sentry-symfony/issues/95)).
 
 ### Step 3: Configure the SDK
 

Original file line number	Diff line number	Diff line change
`@@ -41,16 +41,18 @@ class AppKernel extends Kernel`
`41`	`41`	`{`
`42`	`42`	`$bundles = array(`
`43`	`43`	`// ...`
`44`		`-`
`45`		`- new Sentry\SentryBundle\SentryBundle(),`
`46`	`44`	`);`
`47`	`45`
	`46`	`+ if (in_array($this->getEnvironment(), ['staging', 'prod'], true)) {`
	`47`	`+ $bundles[] = new Sentry\SentryBundle\SentryBundle();`
	`48`	`+ }`
`48`	`49`	`// ...`
`49`	`50`	`}`
`50`	`51`
`51`	`52`	`// ...`
`52`	`53`	`}`
`53`	`54`	```
	`55`	+Note that, with this snippet of code, the bundle will be enabled only for the `staging` and `prod` environment; adjust it to your neeeds. It's discouraged to enable this bundle in the `test` environment, because the Sentry client will change the error handler, which is already used by other packages like Symfony's deprecation handler (see [#46](https://github.com/getsentry/sentry-symfony/issues/46) and [#95](https://github.com/getsentry/sentry-symfony/issues/95)).
`54`	`56`
`55`	`57`	`### Step 3: Configure the SDK`
`56`	`58`