diff --git a/README.md b/README.md
index 2f1a6ff..abd091d 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,28 @@
 # Mango transaction scraper
 
-### Run
+Collects and stores transactions made by the Mango program and Oracle program (used by the Mango program).
+Does so by
+* fetching new signatures from the program (getConfirmedSignaturesForAddress2)
+* using those signatures to fetch transactions (getParsedConfirmedTransaction)
+* parsing details of the transactions (looking at the token accounts and also transaction logs)
+* stores details into a postgres database
+
+## Run
+As the app requires the postgres database as a backend - it is not self contained.
+However, if the postgres db is setup:
 ```
 yarn install
 yarn start
 ```
+
+## Configuration
+Configuration is handled via environmental variables.
+```
+export TRANSACTIONS_CONNECTION_STRING=
+export REQUEST_WAIT_TIME=
+export ORACLE_PROGRAM_ID=
+export MANGO_PROGRAM_ID=
+export CLUSTER_URL=
+export CLUSTER=
+export TRANSACTIONS_SCRAPER_WEBHOOK_URL=
+```
\ No newline at end of file
diff --git a/src/updatePnlCache/index.ts b/src/updatePnlCache/index.ts
index 78f8342..5801a15 100644
--- a/src/updatePnlCache/index.ts
+++ b/src/updatePnlCache/index.ts
@@ -133,7 +133,7 @@ async function runCron() {
     notify('Initialized mango-pnl')
     console.log('Initialized mango-pnl')
 
-    // cron.schedule("*/10 * * * *", async () => {
+    cron.schedule("*/10 * * * *", async () => {
         try {
             console.log('updating cache')
             console.log((new Date()).toISOString())
@@ -147,7 +147,7 @@ async function runCron() {
             notify(e.toString())
             throw e
         }
-    // })
+    })
 }
 
 runCron()