Add html inside a value to a javascript object : I'm working with a google sheet: my goal is to parse the html and turn into a json file in order to add some places to a google map (api), since in my google sheet I saved some map locations. So far so good, I was able to clean the html file and obtain a json file with all the value I need. My problem is that now, I want to add some html inside the json file. My single value looks like that:

    {
            "a": "Store Name",
            "b": "Address",
            "c": "Town/City",
            "d": "Prov",
            "e": "Postal Code",
            "f": "Phone",
            "g": "Website",
            
        },
        {
            "a": "Nutter's Bulk Foods #50",
            "b": "102-400 Main Street",
            "c": " N.E.",
            "d": "Airdrie",
            "e": "AB",
            "f": "T4B 2N1",
            "g": "(403) 948-6354",
            
        },
        {
            "a": "King Drug Hinton 1982 Ltd.",
            "b": "145 Athabasca Avenue",
            "c": "Hinton",
            "d": "AB",
            "e": "T7V 2A4",
            "f": "(780) 865-2645",
            "g": "http://www.kingdrug.ca/",
            
        },

and so on.
I want to add some html inside the single value in order to change my file into:

    {
            "a": "King Drug Hinton 1982 Ltd.",
            "b": "145 Athabasca Avenue",
            "c": "Hinton",
            "d": "AB",
            "e": "T7V 2A4",
            "f": "<a href='tel:+1780..'>(780) 865-2645</a>",
            "g": "<a href='http://www.kingdrug.ca/'>http://www.kingdrug.ca/</a>",
            
    }

And I would like to do it dynamically, in order to save time, so let's say that I want to target the property name "a", retrieve the value "780..." and add an html anchor tag <a> with the <href> equal to the value inside the file. The biggest problem for me is working with a json file, I used to word and iterate with javascript object. Thank you in advance for any useful suggestion.