Remove double "then" in docs/http2.md (#1442)

diff --git a/docs/http2.md b/docs/http2.md
index 84148c3b3337979db5f344f871b5f2b28fa18270..56b032dd0950bbfeb05127a746da371a906ab623 100644 (file)
--- a/docs/http2.md
+++ b/docs/http2.md
@@ -31,7 +31,7 @@ the optional HTTP/2 dependencies...
 $ pip install httpx[http2]
 ```
 
-And then then instantiating a client with HTTP/2 support enabled:
+And then instantiating a client with HTTP/2 support enabled:
 
 ```python
 client = httpx.AsyncClient(http2=True)