Perf docs feedback

Author: jamesdaniels

docs/performance/getting-started.md

@@ -51,27 +51,27 @@ ngOnInit() {
 }
 ```
 
-### `trace(name, options?)`
+### `trace(name: string, options?: TraceOptions)`
 
 The most basic operator, `trace` will measure the amount of time it takes for your observable to either complete or emit its first value. Beyond the basic trace there are several other operators:
 
-### `traceUntil(name, test: (T) => Boolean, options?)`
+### `traceUntil(name: string, test: (T) => Boolean, options?: TraceOptions & { orComplete?: true })`
 
 Trace the observable until the first emission that passes the provided test.
 
 If the `orComplete` option is passed it will complete the trace when the observable completes, even if an emission never passed the provided test.
 
-### `traceWhile(name, test: (T) => Boolean, options?)`
+### `traceWhile(name: string, test: (T) => Boolean, options?: TraceOptions & { orComplete?: true})`
 
 Starting with an emission that passes the provided test, trace until an emission fails the test.
 
 If the `orComplete` option is passed it will complete any existing trace when the observable completes.
 
-### `traceUntilLast(name, options?)`
+### `traceUntilLast(name: string, options?: TraceOptions)`
 
 Trace the observable until completion.
 
-### `traceUntilFirst(name, options?)`
+### `traceUntilFirst(name: string, options?: TraceOptions)`
 
 Traces the observable until the first emission.