fixup! Indicate mutating health functions

src/graceful_termination.jl

@@ -50,7 +50,7 @@ Julia process.
 
 ```julia
 app_status = AppStatus()
-graceful_terminator(() -> shutdown(app_status))
+graceful_terminator(() -> shutdown!(app_status))
 ```
 ## Kubernetes Setup
 

src/health.jl

@@ -13,7 +13,7 @@ Construct an application `Deputy` which provides health check endpoints.
 ## Keywords
 
 - `shutdown_handler` (optional): A zero-argument function which allows the user to provide
-  a custom callback function for when `shutdown(::Deputy)` is called.
+  a custom callback function for when `shutdown!(::Deputy)` is called.
 - `shutdown_handler_timeout::Period` (optional): Specifies the maximum execution duration of
   a `shutdown_handler`.
 """

src/server.jl

@@ -12,7 +12,7 @@ Starts a non-blocking `HTTP.Server` responding to requests to `deputy` health ch
 following health check endpoints are available:
 
 - `/health/live`: Is the server is alive/running?
-- `/health/ready`: Is the server ready (has `readied(deputy)` been called)?
+- `/health/ready`: Is the server ready (has `readied!(deputy)` been called)?
 
 These endpoints will respond with HTTP status `200 OK` on success or
 `503 Service Unavailable` on failure.

test/health.jl

@@ -177,7 +177,7 @@ end
             r = HTTP.get("http://$localhost:$port/health/live")
             @test r.status == 200
 
-            # Faking shutting down. Normal usage would call `shutdown` but we don't want to
+            # Faking shutting down. Normal usage would call `shutdown!` but we don't want to
             # terminate our test process.
             deputy.shutting_down = true