Update examples

README.md

@@ -15,26 +15,32 @@ Execute fallible operations multiple times.
 gleam add persevero@1
 ```
 
-```gleam
-import gleam/int
-import gleam/io
-import persevero
+Given you have some fallible operation:
 
-pub type NetworkError {
-  ServerDown
-  Timeout(Int)
-  InvalidStatusCode(Int)
-  InvalidResponseBody(String)
+```gleam
+pub fn main() {
+  // Start with a 50ms delay, increasing by 10ms each time, allow all errors, and try 3 times.
+  use <- persevero.execute(
+    wait_stream: persevero.linear_backoff(50, 10),
+    allow: fn(_) { True },
+    max_attempts: 3,
+  )
+  fallible_operation()
 }
+```
 
-pub fn network_request() -> Result(String, NetworkError) {
-  Error(Timeout(int.random(5)))
-}
+A complex example:
+
+```gleam
+import persevero
 
 pub fn main() {
-  persevero.exponential_backoff(500, 2)
+  persevero.custom_backoff(wait_time: 1000, next_wait_time: fn(previous) {
+    { previous + 100 } * 2
+  })
+  |> persevero.apply_multiplier(3)
   |> persevero.apply_jitter(20)
-  |> persevero.apply_cap(5000)
+  |> persevero.apply_cap(10000)
   |> persevero.execute(
     allow: fn(error) {
       case error {
@@ -43,11 +49,9 @@ pub fn main() {
         _ -> False
       }
     },
-    max_attempts: 5,
-    operation: network_request,
+    max_attempts: 10,
+    operation: fallible_operation,
   )
-  |> io.debug
-  // Error(RetriesExhausted([Timeout(3), Timeout(4), Timeout(2), Timeout(3), Timeout(1)]))
 }
 ```