Обновить README.md

README.md

@@ -154,7 +154,7 @@ task('setup_env', ['always' => true],
 
 It's possible to specify miscellaneous build properties to setup a proper build environment conditions. There's a set of routines which provides taskman for properties manipulation.
 
-### Setting a property
+#### Setting a property
 
 Use **set** built-in function:
 
@@ -168,7 +168,7 @@ task('setup_env', ['always' => true],
    });
 ``` 
 
-### Setting a property only if it's not already set 
+#### Setting a property only if it's not already set 
 
 Use **setor** built-in function. Property will be set only if it's not set some where before. It's a convenient pattern to have a default set of properties which can be overriden by the environment properties included from an external script.
 
@@ -182,7 +182,7 @@ task('setup_env', ['always' => true],
    });
 ``` 
 
-### Getting a property
+#### Getting a property
 
 Use **get** built-in function:
 
@@ -196,7 +196,7 @@ task('build_ios',
    });
 ``` 
 
-### Getting a property or some default value
+#### Getting a property or some default value
 
 Use **getor** built-in function:
 
@@ -208,4 +208,28 @@ task('build_ios',
    function() {
       shell("xcode build app " . getor("IOS_APP_ID", "3232232"));
    });
-``` 
+``` 
+
+#### Listing all build properties
+
+To list all defined build properties one should use the **props** task:
+
+```
+./gamectl props
+
+***** task 'props' start *****
+
+Available props:
+---------------------------------
+UNITY_ASSETS_DIR : '/Users/ps/dev/skeletor//unity/Assets/'
+---------------------------------
+GAME_COMPANY_NAME : 'Black Hole Light'
+***** task 'props' done(0.11/0.11 sec.) *****
+***** All done (0.11 sec.) *****
+```
+
+You can filter properties you want to get information about by a partial match as follows:
+
+```
+./gamectl props FOO
+```