Typo fix.

Alexander Korotkov · Alexander Korotkov · commit 4e9e96e1b5a4 · 2016-05-04T11:13:46.000+03:00
diff --git a/src/pgpro-upgrade/README b/src/pgpro-upgrade/README
@@ -36,7 +36,7 @@ feature.
 Both files should have same base name and one — extension .test and
 other .sql
 
-1. Script with .sql extension contains usial create commands which would
+1. Script with .sql extension contains usual create commands which would
 create neccessary database object(s).
 
 2. Script with .text extension should contain single select query,
