Issue with documentation

[hhoweson]

I just spent the last half hour trying to set it up and thought I would give both a suggestion for the documentation and point out an error.

In the code example it shows:

"actionButton": {
     "defaultColor": "#ff0034", // Can also use string color names.
     "commands": [
         {
             "name": "Run Cargo",
             "color": "green",
             "singleInstance": true,
             "command": "cargo run", // This is executed in the terminal.
         },
         {
             "name": "Build Cargo",
             "color": "green",
             "command": "cargo build",
         }
     ]
    }

The extension will not work unless you use "actionButtons" rather than "actionButton". Additionally it may be more useful to display it with surrounding curly brackets so that it is valid Json that the user can paste straight in as shown below.

{
    "actionButtons": {
        "defaultColor": "#ff0034", // Can also use string color names.
            "commands": [
            {
                "name": "Run Cargo",
                 "color": "green",
                 "singleInstance": true,
                 "command": "cargo run", // This is executed in the terminal.
             },
             {
                 "name": "Build Cargo",
                 "color": "green",
                 "command": "cargo build",
             }
         ]
     }
}   

[seunlanlege]

closed via #17