Fix link to parallel page from async page (#440)

diff --git a/docs/async.md b/docs/async.md
index c0e4a68991de82121bfe095a16ad516a28fc400d..45620bf8c276ac9f249b7d7121f5fcdfbf6ea66c 100644 (file)
--- a/docs/async.md
+++ b/docs/async.md
@@ -48,7 +48,7 @@ The async response methods are:
 * `.raw()`
 * `.close()`
 
-If you're making [parallel requests](../parallel/), then you'll also need to use an async API:
+If you're making [parallel requests](parallel.md), then you'll also need to use an async API:
 
 ```python
 >>> async with httpx.AsyncClient() as client: