Update header.html
diff --git a/doc/web_doxyfile.in b/doc/web_doxyfile.in
index 07d6819..caba9d7 100644
--- a/doc/web_doxyfile.in
+++ b/doc/web_doxyfile.in
@@ -44,7 +44,7 @@
 # for a project that appears at the top of each page and should give viewer a
 # quick idea about the purpose of the project. Keep the description short.
 
-PROJECT_BRIEF          =
+PROJECT_BRIEF           = "JSON data format manipulation library"
 
 # With the PROJECT_LOGO tag one can specify an logo or icon that is included in
 # the documentation. The maximum height of the logo should not exceed 55 pixels
@@ -984,7 +984,8 @@
 # classes, structs, unions or interfaces.
 # The default value is: YES.
 
-ALPHABETICAL_INDEX     = NO
+ALPHABETICAL_INDEX     = YES
+TOC_INCLUDE_HEADINGS = 2
 
 # The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
 # which the alphabetical index list will be split.
@@ -1360,7 +1361,7 @@
 # The default value is: NO.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-GENERATE_TREEVIEW      = NO
+GENERATE_TREEVIEW      = YES
 
 # The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
 # doxygen will group on one line in the generated HTML documentation.
@@ -1797,18 +1798,6 @@
 
 XML_OUTPUT             = xml
 
-# The XML_SCHEMA tag can be used to specify a XML schema, which can be used by a
-# validating XML parser to check the syntax of the XML files.
-# This tag requires that the tag GENERATE_XML is set to YES.
-
-XML_SCHEMA             =
-
-# The XML_DTD tag can be used to specify a XML DTD, which can be used by a
-# validating XML parser to check the syntax of the XML files.
-# This tag requires that the tag GENERATE_XML is set to YES.
-
-XML_DTD                =
-
 # If the XML_PROGRAMLISTING tag is set to YES doxygen will dump the program
 # listings (including syntax highlighting and cross-referencing information) to
 # the XML output. Note that enabling this will significantly increase the size