Add commas to pico_btstack_make_gatt_header description

Author: will-v-pi

src/rp2_common/pico_btstack/CMakeLists.txt

@@ -304,7 +304,7 @@ if (EXISTS ${PICO_BTSTACK_PATH}/${BTSTACK_TEST_PATH})
 
     # pico_btstack_make_gatt_header(TARGET_LIB TARGET_TYPE GATT_FILE)
     # Make a GATT header file from a BTstack GATT file.
-    # Pass the target library name library type and path to the GATT input file.
+    # Pass the target library name, library type, and path to the GATT input file.
     # To add additional directories to the gatt #import path, add them to the end of the argument list.
     function(pico_btstack_make_gatt_header TARGET_LIB TARGET_TYPE GATT_FILE)
             find_package (Python3 REQUIRED COMPONENTS Interpreter)