diff --git a/README.md b/README.md
index b19456d..400be37 100644
--- a/README.md
+++ b/README.md
@@ -32,6 +32,10 @@ Lastly, run with:
 
 You will need a proxy such as nginx to access the forum on the public internet.
 
+## Upgrading
+
+To upgrade from a previous version, run ``upgrade_sqlite.sh``
+
 ## Screenshots
 
 ![Index](https://static.agreper.com/index.png)
diff --git a/upgrade_sqlite.sh b/upgrade_sqlite.sh
index c845868..5837d8a 100755
--- a/upgrade_sqlite.sh
+++ b/upgrade_sqlite.sh
@@ -2,6 +2,10 @@
 
 # Script to upgrade a database from one version to another by adding columns,
 # tables etc.
+# Upgrade scripts go into upgrade/sqlite/
+# If there are multiple changes after a revision but before a new one, suffix a
+# letter (e.g. `v0.1.1a`).
+# When a new revision is out, add a script that changes just the version.
 
 LAST_VERSION=agreper-v0.1.1