man/io_uring_prep_write_fixed.3: fix typo
It's "writing from" not "reading into". Too much copy paste from the
read fixed man page.
@@ -24,9 +24,9 @@ registered IO buffer. The submission queue entry
.I sqe
is setup to use the file descriptor
.I fd
-to start reading
+to start writing
.I nbytes
-into the buffer
+from the buffer
.I buf
at the specified
.I offset,
