bpo-41959: Fix grammar around class asyncio.MultiLoopChildWatcher text (GH-22580)

While translating the following document to Spanish we found there is a grammar issue on the original documentation.

diff --git a/Doc/library/asyncio-policy.rst b/Doc/library/asyncio-policy.rst
index d9d3232d2408b38132031b3d083517ec7c77e084..88e69ceff9adc177131ae6763cda66120a285138 100644 (file)
--- a/Doc/library/asyncio-policy.rst
+++ b/Doc/library/asyncio-policy.rst
@@ -219,7 +219,7 @@ implementation used by the asyncio event loop:
 
    This implementation registers a :py:data:`SIGCHLD` signal handler on
    instantiation. That can break third-party code that installs a custom handler for
-   `SIGCHLD`.  signal).
+   :py:data:`SIGCHLD` signal.
 
    The watcher avoids disrupting other code spawning processes
    by polling every process explicitly on a :py:data:`SIGCHLD` signal.