bpo-34906: Doc: Fix typos (2) (GH-9735)

Fix typos
diff --git a/Misc/NEWS.d/3.6.0a3.rst b/Misc/NEWS.d/3.6.0a3.rst
index 251e6aa..2ca2580 100644
--- a/Misc/NEWS.d/3.6.0a3.rst
+++ b/Misc/NEWS.d/3.6.0a3.rst
@@ -476,7 +476,7 @@
 Rename the platform directory from plat-$(MACHDEP) to
 plat-$(PLATFORM_TRIPLET). Rename the config directory (LIBPL) from
 config-$(LDVERSION) to config-$(LDVERSION)-$(PLATFORM_TRIPLET). Install the
-platform specifc _sysconfigdata module into the platform directory and
+platform specific _sysconfigdata module into the platform directory and
 rename it to include the ABIFLAGS.
 
 ..