feat(isMobilePhone): add Turkmenistan tk-TM

squashed commits and resolved merge conflict for #1780

Add Turkmenistan validation regax

Update README.md to include Turkmenistan (tk-Tm)

Add test cases for tk-TM

add missing comma for isMobilePhone.js

add missing commas for test/validators.js

src/lib/isMobilePhone.js

@@ -122,6 +122,7 @@ const phones = {
   'tg-TJ': /^(\+?992)?[5][5]\d{7}$/,
   'th-TH': /^(\+66|66|0)\d{9}$/,
   'tr-TR': /^(\+?90|0)?5\d{9}$/,
+  'tk-TM': /^(\+993|993|8)\d{8}$/,
   'uk-UA': /^(\+?38|8)?0\d{9}$/,
   'uz-UZ': /^(\+?998)?(6[125-79]|7[1-69]|88|9\d)\d{7}$/,
   'vi-VN': /^((\+?84)|0)((3([2-9]))|(5([25689]))|(7([0|6-9]))|(8([1-9]))|(9([0-9])))([0-9]{7})$/,

test/validators.js

@@ -8201,6 +8201,22 @@ describe('Validators', () => {
           '081234567891',
         ],
       },
+      {
+        locale: 'tk-TM',
+        valid: [
+          '+99312495154',
+          '99312130136',
+          '+99312918407',
+          '99312183399',
+          '812391717',
+        ],
+        invalid: [
+          '12345',
+          '+99412495154',
+          '99412495154',
+          '998900066506',
+        ],
+      },
       {
         locale: ['en-ZA', 'be-BY'],
         valid: [