Fix yaml `workingDirectory` case

doc/yamlConfigFile.md

@@ -282,10 +282,10 @@ serviceaccount:
 ### Working directory
 
 Some services need to run with a working directory specified. 
-To do this, specify a `workingdirectory` element like this:
+To do this, specify a `workingDirectory` element like this:
 
 ```yaml
-workingdirectory: 'C:\application'
+workingDirectory: 'C:\application'
 ```
 
 ### Priority

doc/yamlConfigurationSchema.json

@@ -41,9 +41,9 @@
       "$id": "#/properties/hideWindow",
       "$ref": "#/definitions/boolPattern"
     },
-    "workingdirectory": {
-      "$id": "#/properties/workingdirectory",
-      "description": "Some services need to run with a working directory specified. To do this, specify the workingdirectory element",
+    "workingDirectory": {
+      "$id": "#/properties/workingDirectory",
+      "description": "Some services need to run with a working directory specified. To do this, specify the workingDirectory element",
       "type": "string"
     },
     "serviceAccount": {

examples/sample-allOption.yml

@@ -23,7 +23,7 @@ executable: java
 #    c:\cygwin\home\kohsuke\ws\hello-world\out\production\hello-world 
 #    test.Main
 #startArguments: start arguments
-#workingdirectory: C:\myApp\work
+#workingDirectory: C:\myApp\work
 priority: Normal
 stopTimeout: 15 sec
 stopParentProcessFirst: true