Configure: fix minor typo in apitable comment

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12398)
diff --git a/Configure b/Configure
index ce7c895..c9b5c59 100755
--- a/Configure
+++ b/Configure
@@ -190,7 +190,7 @@
     # The numbering used changes from 3.0 and on because we updated
     # (solidified) our version numbering scheme at that point.
 
-    # From 3.0 and on, we internalise the given version number in dedcimal
+    # From 3.0 and on, we internalise the given version number in decimal
     # as MAJOR * 10000 + MINOR * 100 + 0
     "3.0.0" => 30000,
     "3.0"   => 30000,