list all available checks

Author: lsmith77

README.md

@@ -11,22 +11,26 @@ It currently ships with the following Diagnostic Checks:
  * [ApcMemory](#apcmemory) - check available APC memory,
  * [Callback](#callback) - call a user-defined diagnostic function,
  * [ClassExists](#classexists) - make sure class exists in current environment,
+ * [CouchDBCheck](#couchdbcheck) - check if connection is possible,
  * [CpuPerformance](#cpuperformance) - check server CPU performance is above baseline,
  * [DirReadable](#dirreadable) - make sure given path is readable,
  * [DirWritable](#dirwritable) - make sure given path is writable,
  * [DiskFree](#diskfree) - check there's enough free space on given path,
+ * [DiskUsage](#diskusage) - check if the disk usage is below warning/critical percent thresholds,
+ * [DoctrineMigration](#doctrinemigration) - make sure all migrations are applied.
  * [ExtensionLoaded](#extensionloaded) - make sure extension is loaded,
- * [HttpService](#httpservice) - check if given http host is responding,
  * [GuzzleHttpService](#guzzlehttpservice) - check if given http host is responding using Guzzle,
+ * [HttpService](#httpservice) - check if given http host is responding,
  * [Memcache](#memcache) - check if memcache extension is loaded and given server is reachable,
+ * [OpCacheMemory](#opcachememory) - check if the OpCache memory usage is below warning/critical thresholds,
+ * [PDOCheck](#pdocheck) - check if connection is possible,
  * [PhpVersion](#phpversion) - make sure that PHP version matches constraint,
  * [PhpFlag](#phpflag) - make sure that given PHP flag (feature) is turned on or off.
  * [ProcessRunning](#processrunning) - check if a process with given name or ID is currently running,
  * [RabbitMQ](#rabbitmq) - Validate that a RabbitMQ service is running,
  * [Redis](#redis) - Validate that a Redis service is running,
  * [SecurityAdvisory](#securityadvisory) - check installed composer dependencies against SensioLabs SA database,
  * [StreamWrapperExists](#streamwrapperexists) - make sure given stream wrapper is available.
- * [DoctrineMigration](#doctrinemigration) - make sure all migrations are applied.
 
 File validation checks: