[docs] Misc fixes
diff --git a/docs/harfbuzz-sections.txt b/docs/harfbuzz-sections.txt
index 52b43a9..c625b92 100644
--- a/docs/harfbuzz-sections.txt
+++ b/docs/harfbuzz-sections.txt
@@ -612,14 +612,14 @@
 
 <SECTION>
 <FILE>hb-ot-meta</FILE>
-hb_ot_meta_t
+hb_ot_meta_tag_t
 hb_ot_meta_get_entry_tags
 hb_ot_meta_reference_entry
 </SECTION>
 
 <SECTION>
 <FILE>hb-ot-metrics</FILE>
-hb_ot_metrics_t
+hb_ot_metrics_tag_t
 hb_ot_metrics_get_position
 hb_ot_metrics_get_variation
 hb_ot_metrics_get_x_variation
diff --git a/src/hb-gdi.cc b/src/hb-gdi.cc
index d55085c..f6306ef 100644
--- a/src/hb-gdi.cc
+++ b/src/hb-gdi.cc
@@ -58,7 +58,7 @@
 
 /**
  * hb_gdi_face_create:
- * @hdc: a HFONT object.
+ * @hfont: a HFONT object.
  *
  * Return value: #hb_face_t object corresponding to the given input
  *
diff --git a/src/hb-ot-layout.cc b/src/hb-ot-layout.cc
index 467feae..fba3ad1 100644
--- a/src/hb-ot-layout.cc
+++ b/src/hb-ot-layout.cc
@@ -1949,7 +1949,7 @@
 /**
  * hb_ot_layout_get_baseline:
  * @font: a font
- * @baseline: a baseline tag
+ * @baseline_tag: a baseline tag
  * @direction: text direction.
  * @script_tag:  script tag.
  * @language_tag: language tag.