fix docs

src/SUMMARY.md

@@ -5,8 +5,8 @@
 - [Getting Started](guide/getting_started.md)
 - [Payments](guide/payments.md)
 - [Receive via Onchain](guide/recieve_onchain.md)
-- [Lnurl](guide/lnurl.md)
-  - [Lnurl Pay](guide/lnurl_pay.md)
-  - [Lnurl Withdraw](guide/lnurl_withdraw.md)
-  - [Lnurl Auth](guide/lnurl_auth.md)
+- [lnurl](guide/lnurl.md)
+  - [lnurl Pay](guide/lnurl_pay.md)
+  - [lnurl Withdraw](guide/lnurl_withdraw.md)
+  - [lnurl Auth](guide/lnurl_auth.md)
 - [Send Onchain](guide/send_onchain.md)

src/guide/lnurl_auth.md

@@ -1 +1 @@
-# lnurl-auth
+# lnurl Auth

src/guide/lnurl_pay.md

@@ -1 +1 @@
-# lnurl-pay
+# lnurl Pay

src/guide/lnurl_withdraw.md

@@ -1 +1 @@
-# lnurl-withdraw
+# lnurl Withdraw