[docs] More buffers documentation

docs/harfbuzz-sections.txt

diff --git a/docs/harfbuzz-sections.txt b/docs/harfbuzz-sections.txt
index 153f19e..e0dc23d 100644
--- a/docs/harfbuzz-sections.txt
+++ b/docs/harfbuzz-sections.txt
@@ -56,8 +56,8 @@
 hb_buffer_set_length
 hb_buffer_get_length
 hb_buffer_set_segment_properties
-hb_buffer_guess_segment_properties
 hb_buffer_get_segment_properties
+hb_buffer_guess_segment_properties
 hb_buffer_set_unicode_funcs
 hb_buffer_get_unicode_funcs
 hb_buffer_set_user_data
@@ -84,9 +84,9 @@
 hb_buffer_content_type_t
 hb_buffer_flags_t
 hb_buffer_cluster_level_t
-hb_buffer_serialize_flags_t
 hb_segment_properties_t
 hb_buffer_serialize_format_t
+hb_buffer_serialize_flags_t
 hb_buffer_message_func_t
 </SECTION>