bank landing: document community pool funding path

configs/bank-landing/README.md

@@ -13,15 +13,26 @@ open your own bank account, and point merchants at `taler.hacktivism.ch`.
 
 ## User flow (documented on the page)
 
-Same **one-step** pattern as [taler-ops.ch Android/iOS guides](https://taler-ops.ch/en/users-android.html):
+### Primary path (works without your own bank account)
 
 1. **Install wallet** — Android (Play Store / F-Droid) and iOS (App Store), plus hub `wallet.taler.net`.
-2. **One QR / link** — `taler://withdraw-exchange/exchange.hacktivism.ch/`  
+2. **One QR / link** — live `taler://withdraw/…` from the **community-shared** bank pool (`explorer`).  
-   Adds the GOA exchange **and** starts withdrawal (accept ToS → enter amount).
+   Minted via `GET /intro/demo-withdraw.json` (or fallback `withdraw.uri`).  
+   Auto-confirm finishes the bank side so coins reach the wallet.
 
-The old two-step path (`taler://add-exchange/…` + demo `taler://withdraw/…` from `withdraw.uri`) is **removed** from the landing.
+### Optional paths
 
-Optional: bank UI (`/webui/`) and merchant (`taler.hacktivism.ch`) stay further down.
+- **Own bank account** — register in `/webui/`, then withdraw (private balance).  
+- **`taler://withdraw-exchange/…`** — only useful if you already have a bank balance to withdraw from.
+
+### How it works (community pool)
+
+1. Shared account `explorer` is pre-funded with GOA.  
+2. Each click creates a **one-shot** withdrawal from that pool (not a personal login).  
+3. Wallet accepts the URI; bank auto-confirm + exchange settle → coins in the app.  
+4. Balance is **shared**; demo amounts only.
+
+Helpers: `scripts/taler-bank/demo-withdraw-api.py`, `refresh-demo-withdraw.sh`, `auto-confirm-withdrawals.sh`, `install-demo-withdraw-api.sh`.
 
 ### CLI sketch (fresh wallet DB)