GoUsers: add Iran Legal

Add Iran Legal as a Go user in Iran with GitHub Go project link.

Change-Id: I5672d50df7235f68bb2aa49ee27e313ad718447a
GitHub-Last-Rev: f717fbf8356befff672d0a701652ada66ddaa5c4
GitHub-Pull-Request: golang/wiki#68
Reviewed-on: https://go-review.googlesource.com/c/wiki/+/701595
Reviewed-by: Sean Liao <sean@liao.dev>

GoUsers.md

diff --git a/GoUsers.md b/GoUsers.md
index 8c6432b..f37161f 100644
--- a/GoUsers.md
+++ b/GoUsers.md
@@ -652,6 +652,7 @@
   * [eSITE](https://esite-iq.com/)
 
 ### Iran
+  * [Iran Legal](https://www.iran-legal.com) – Legal services in Persian [GitHub](https://github.com/iranlegal/iranlegalgo)
   * [Kamva](https://kamva.ir/) – Kamva eCommerce Platform [github](https://github.com/kamva/)
   * [Idpay](https://idpay.ir/) - bank gateways and a stable billing service in order to connect payments.
   * [IranBooking](https://www.iran-booking.com) - Online booking system for hotels in Iran