fix spelling detected by lintian
Change-Id: I01e54b5cf111677079a8ad57645d3ceb7834702a
diff --git a/doc/manuals/chapters/counters_generated.adoc b/doc/manuals/chapters/counters_generated.adoc
index 6a3a3d2..1b40d8b 100644
--- a/doc/manuals/chapters/counters_generated.adoc
+++ b/doc/manuals/chapters/counters_generated.adoc
@@ -25,7 +25,7 @@
| sms:delivered | <<msc_sms:delivered>> | Global SMS Deliver attempts.
| sms:rp_err_mem | <<msc_sms:rp_err_mem>> | CAUSE_MT_MEM_EXCEEDED errors of MS responses on a sms deliver attempt.
| sms:rp_err_other | <<msc_sms:rp_err_other>> | Other error of MS responses on a sms delive attempt.
-| sms:deliver_unknown_error | <<msc_sms:deliver_unknown_error>> | Unknown error occured during sms delivery.
+| sms:deliver_unknown_error | <<msc_sms:deliver_unknown_error>> | Unknown error occurred during sms delivery.
| call:mo_setup | <<msc_call:mo_setup>> | Received setup requests from a MS to init a MO call.
| call:mo_connect_ack | <<msc_call:mo_connect_ack>> | Received a connect ack from MS of a MO call. Call is now succesful connected up.
| call:mt_setup | <<msc_call:mt_setup>> | Sent setup requests to the MS (MT).