Update main documentation

main/footer.js

@@ -1,7 +1,7 @@
 function writeHeader() {
-    document.write('Version 1.14.4-dev4');
+    document.write('Version 1.14.4-dev6');
 };
 
 function writeFooter()  {
-    document.write('Generated on Wed Jan 25 2023 08:45:07 for CMSIS-DSP 1.14.4-dev4+g1378fa9. Copyright © 2022-2023 Arm Limited (or its affiliates). All rights reserved.');
+    document.write('Generated on Mon Jan 30 2023 06:55:25 for CMSIS-DSP 1.14.4-dev6+g18d3504. Copyright © 2022-2023 Arm Limited (or its affiliates). All rights reserved.');
 };

version.js

@@ -1,6 +1,6 @@
 //--- list of versions ---
 const versions = {
-    "main": "1.14.4-dev4",
+    "main": "1.14.4-dev6",
     "latest": "1.14.3",
     "v1.14.2": "1.14.2",
     "v1.14.1": "1.14.1",