doc/muxers: move hls_flags temp_file to after SECOND LEVEL hls example

the temp_file hls_flags describe text offset is wrong, now move it after example
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

doc/muxers.texi

@@ -656,11 +656,6 @@ Makes it possible to use segment duration (calculated  in microseconds) as %%t i
 expression besides date/time values when use_localtime is on.
 To get fixed width numbers with trailing zeroes, %%0xt format is available where x is the required width.
 
-@item temp_file
-Write segment data to filename.tmp and rename to filename only once the segment is complete. A webserver
-serving up segments can be configured to reject requests to *.tmp to prevent access to in-progress segments
-before they have been added to the m3u8 playlist.
-
 @example
 ffmpeg -i sample.mpeg \
    -f hls -hls_time 3 -hls_list_size 5 \
@@ -670,6 +665,10 @@ ffmpeg -i sample.mpeg \
 This will produce segments like this:
 @file{segment_20170102194334_0003_00122200_0000003000000.ts}, @file{segment_20170102194334_0004_00120072_0000003000000.ts} etc.
 
+@item temp_file
+Write segment data to filename.tmp and rename to filename only once the segment is complete. A webserver
+serving up segments can be configured to reject requests to *.tmp to prevent access to in-progress segments
+before they have been added to the m3u8 playlist.
 
 @end table