Configured the doxygen comments to be pulled into docs for BLE

docs/ble_hs/ble_att.rst

@@ -14,6 +14,9 @@ higher level GATT profile, which sits directly above ATT in the host. NimBLE exp
 which are not encompassed by higher level GATT functions. This section documents the ATT functionality that the NimBLE
 host exposes to the application.
 
-Header
+API
 ~~~~~~
-.. doxygenfile:: nimble/host/include/host/ble_hs.h
+
+.. doxygengroup:: bt_host
+    :content-only:
+    :members:

docs/ble_hs/ble_gap.rst

@@ -6,9 +6,9 @@ Introduction
 
 The Generic Access Profile (GAP) is responsible for all connecting, advertising, scanning, and connection updating operations.
 
-Header
+API
 ~~~~~~
 
-.. code-block:: cpp
-
-    #include "host/ble_hs.h"
+.. doxygengroup:: bt_host_gap
+    :content-only:
+    :members:

docs/ble_hs/ble_gattc.rst

@@ -7,9 +7,9 @@ Introduction
 The Generic Attribute Profile (GATT) manages all activities involving services, characteristics, and descriptors. The
 client half of the GATT API initiates GATT procedures.
 
-Header
+API
 ~~~~~~
 
-.. code-block:: cpp
-
-    #include "host/ble_hs.h"
+.. doxygengroup:: bt_gatt
+    :content-only:
+    :members:

docs/ble_hs/ble_gatts.rst

@@ -7,9 +7,9 @@ Introduction
 The Generic Attribute Profile (GATT) manages all activities involving services, characteristics, and descriptors. The
 server half of the GATT API handles registration and responding to GATT clients.
 
-Header
+API
 ~~~~~~
 
-.. code-block:: cpp
-
-    #include "host/ble_hs.h"
+.. doxygengroup:: bt_gatt
+    :content-only:
+    :members: