docs: Add more documentation to a function

lib/index.js

@@ -540,13 +540,16 @@ exports.init = function init(args, callback) {
          * Check if the current license contains (eventually among others) at least one of the allowed licenses
          *
          * @param      {string}  currentLicense  The current license
-         * @param      {<type>}  packageName     The package name
+         * @param      {string}  packageName     The package name
          */
         const checkForOnlyAllow = (currentLicense, packageName) => {
             if (toCheckforOnlyAllow.length > 0) {
                 let containsOneOfAllowedPackages = false;
 
                 for (const allowedLicense of toCheckforOnlyAllow) {
+                    // "currentLicense" is a longer string that may contain several license names,
+                    // and we check if one of those is a license listed in the "toCheckforOnlyAllow"
+                    // licenses array:
                     if (currentLicense.includes(allowedLicense)) {
                         containsOneOfAllowedPackages = true;
                         break;