Merge pull request #1574 from mimmi20/add-extensions

mention some more extensions in composer.json

composer.json

@@ -44,7 +44,10 @@
         "aws/aws-sdk-php": "Allow sending log messages to AWS services like DynamoDB",
         "rollbar/rollbar": "Allow sending log messages to Rollbar",
         "php-console/php-console": "Allow sending log messages to Google Chrome",
-        "ext-mbstring": "Allow to work properly with unicode symbols"
+        "ext-mbstring": "Allow to work properly with unicode symbols",
+        "ext-sockets": "Allow sending log messages to a Syslog server (via UDP driver)",
+        "ext-curl": "Required to send log messages using the IFTTTHandler, the LogglyHandler, the SendGridHandler, the SlackWebhookHandler or the TelegramBotHandler",
+        "ext-openssl": "Required to send log messages using SSL"
     },
     "autoload": {
         "psr-4": {"Monolog\\": "src/Monolog"}