add tanzania

Author: ChiragAgg5k

src/routes/docs/advanced/platform/phone-otp/+page.markdoc

@@ -201,6 +201,7 @@ SMS rates vary by country due to differences in telecom infrastructure and regul
 | +963         | Syria                    | $ 0.37            |
 | +886         | Taiwan                   | $ 0.05            |
 | +992         | Tajikistan               | $ 0.35            |
+| +255         | Tanzania                 | $ 0.31            |
 | +66          | Thailand                 | $ 0.02            |
 | +228         | Togo                     | $ 0.33            |
 | +676         | Tonga                    | $ 0.16            |
@@ -219,5 +220,4 @@ SMS rates vary by country due to differences in telecom infrastructure and regul
 | +84          | Vietnam                  | $ 0.18            |
 | +967         | Yemen                    | $ 0.22            |
 | +260         | Zambia                   | $ 0.28            |
-| +255         | Zanzibar                 | $ 0.11            |
 | +263         | Zimbabwe                 | $ 0.20            |