level tweaks HTML: Rearrange the description elements to give more clarity
    
    Previously, the user saw:
    
    The name of current settings
    Description of the settings (if available)
    General description of the group
    
    This was confusing as we first explained specifics and only later gave
    the user generic description of the group needed to understand the
    specifics.
    
    This commit changes the flow of information to:
    
    General description of the group
    The name of current settings
    Description of the settings (if available)
    
    Moreover, this flow is the same as appear in levels.js. So the developer
    sees the information in the same order as users do.