Update downloadFile content

documentation/Functions.md

@@ -312,13 +312,26 @@ If the tutorial should be tested on the console environment, you have to specify
 ***
 
 ### downloadFile <a name="downloadFile"></a>
+This function is used to download a file from an external URL.
 #### parameter 
-1. URL of the file to be downloaded.
-2. Name of file.
-3. (Optional) Downloads file to a given directory relative to workspace. Directory is created, if its not existing.
+This function consist of 3 parameters.
+1. First parameter:
+    - **Required**
+    - **Type**- String
+    - **Description**- URL of the file to be downloaded.
+2. Second Parameter:
+    - **Required**
+    - **Type**- String
+    - **Description**- Name of file
+3. Third parameter:
+    - **Optional**
+    - **Type**- String
+    - **Description**- The path where the file should be stored. It can be used if you want to load the file into a different folder and not into the current Workspace. If folder does not exists, it will be created.
 #### example 
 downloadFile("https://bit.ly/2BCkFa9", "file", "downloads")
 
+Note: The command for execution will be generated by Katacoda runner, so user will have to execute this command manually.
+
 ***
 
 ### buildNg <a name="buildNg"></a>
@@ -433,4 +446,4 @@ addSetupScript("assets/createProjectScript.sh", "assets/createProjectScript.ps1"
 1. Path of the file to be opened (relative path to the workspace directory)
 
 #### example 
-openFile("cobigenexample/core/src/main/java/com/example/application/cobigenexample/customermanagement/dataaccess/api/CustomerEntity.java")
+openFile("cobigenexample/core/src/main/java/com/example/application/cobigenexample/customermanagement/dataaccess/api/CustomerEntity.java")