message: Fix ruleset variables -related docs
diff: @@ -62,18 +62,26 @@ Symbol | Type | Value
  Ruleset variable access symbols allow accessing variable values through ECExpressions.
  Symbol | Deprecated Symbol | Type | Value
  ---------------------------------------| ------------------------------------|---------|----------
  -`GetVariableStringValue("setting_id")`| `GetSettingValue("setting_id")` | string | Get value of a variable with the specified ID
  -`GetVariableBoolValue("setting_id")` | `GetSettingBoolValue("setting_id")` | bool | Get value of a variable with the specified ID
  -`GetVariableIntValue("setting_id")` | `GetSettingIntValue("setting_id")` | number | Get value of a variable with the specified ID
  -`GetVariableIntValues("setting_id")` | `GetSettingIntValues("setting_id")` | number[]| Get value of a variable with the specified ID
  -`HasVariable("variable_id")` | `HasSetting("setting_id")` | bool | Does variable with the specified ID exist
  +----------------------------------| --------------------------------|---------|----------
  +`GetVariableStringValue("var_id")`| `GetSettingValue("var_id")` | string | Get string value of a variable with the specified ID
  +`GetVariableBoolValue("var_id")` | `GetSettingBoolValue("var_id")` | bool | Get boolean value of a variable with the specified ID
  +`GetVariableIntValue("var_id")` | `GetSettingIntValue("var_id")` | number | Get int value of a variable with the specified ID
  +`GetVariableIntValues("var_id")` | `GetSettingIntValues("var_id")` | number[]| Get int [value list](#value-lists) of a variable with the specified ID
  +`HasVariable("var_id")` | `HasSetting("var_id")` | bool | Does variable with the specified ID exist
  +
  +### Other symbols
  +
  +Symbol | Type | Value
  +--------------------------------------|----------|----------
  +`Set(number1, number2, ..., numberN)` | number[] | Create a [value list](#value-lists) of the supplied numbers.
  +
  +## Value Lists
  Value lists in ECExpressions can be handled with lambdas. Currently the
  presentation rules engine supports only a single simple lambda for
  -`GetVariableIntValues` function:
  +value lists:
  ```
  -GetVariableIntValues("variable_id").AnyMatch(x => x = this.PropertyValue)
  +value_list.AnyMatch(x => x = this.PropertyValue)
  ```
  -The above expression returns `true` if `GetVariableIntValues("setting_id")`
  -contains the value of `this.PropertyValue`.
  +The above expression returns `true` if `value_list` contains the value
  +of `this.PropertyValue`.
  