Move information about migration to a separate section

warden_server/README

@@ -7,8 +7,9 @@ Content
   A. Introduction
   B. Dependencies
   C. Installation
-  D. Configuration
-  E. Command line
+  D. Upgrading
+  E. Configuration
+  F. Command line
 
 ------------------------------------------------------------------------------
 A. Introduction
@@ -84,14 +85,6 @@ C. Installation
 
    psql -U warden -h localhost warden3 < warden_3.0_postgres.sql
 
- * Migrate the database
-
-  mysql -p -u warden warden3 < migrations/mysql/add_managed_flag.sql
-
-  or
-
-  psql -U warden -h localhost warden3 < migrations/postgres/add_managed_flag.sql
-
  * Get up to date Idea schema
 
    wget -O warden_server/idea.schema https://idea.cesnet.cz/_media/en/idea0.schema
@@ -128,7 +121,19 @@ C. Installation
  * Reload Apache
 
 ------------------------------------------------------------------------------
-D. Configuration
+D. Upgrading
+
+ * When upgrading from Warden 3.0, run the following migrations:
+
+ mysql -p -u warden warden3 < migrations/mysql_migration_0001_upgrade_add_manage_flag.sql
+
+ or
+
+ psql -U warden -h localhost warden3 < migrations/postgresql_migration_0001_upgrade_add_manage_flag.sql
+
+
+------------------------------------------------------------------------------
+E. Configuration
 
    Configuration is JSON object in file (warden_server.cfg by default),
 however, lines starting with "#" or "//" are allowed and will be ignored as
@@ -232,7 +237,7 @@ object from particular section list is used ("FileLogger" for example).
       description: human readable description, sent in server info
 
 ------------------------------------------------------------------------------
-E. Command line
+F. Command line
 
    When run from command line, server offers set of commands and options for
 runtime and database management. You can also use --help option for each