Step by step procedure to fill up data 

1) Upload the picture from the upload picture with caption ( the caption with your headline will be your subheading )
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2) Under Photos You can select your headline for your page. 

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3) You can add text from text tab where you will have interface to write down the text within the word limit and hit submit

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There is a limit on the following parameters 
1) Max number of pics
2) Maximum Character limit.