Update additional-resources.md

Fix broken links

Author: mrfearless

additional-resources.md

@@ -7,17 +7,17 @@ Other online tutorials about custom contol creation:
 | Martin Mitáš | Custom Controls in Win API | [www.codeproject.com/Articles/559385/Custom-Controls-in-Win-API-The-Basics](https://www.codeproject.com/Articles/559385/Custom-Controls-in-Win-API-The-Basics) |
 | GunnerInc | Creating a hyperlink | [www.dreamincode.net/forums/topic/241669-masm-creating-a-hyperlink/](http://www.dreamincode.net/forums/topic/241669-masm-creating-a-hyperlink/) |
 | Forhad Reza | Clock Frame Design Using Assembly | [www.codeproject.com/Tips/1039519/Clock-Frame-Design-Using-Assembly](https://www.codeproject.com/Tips/1039519/Clock-Frame-Design-Using-Assembly) |
-| ZetCode | Burning Control | [www.zetcode.com/gui/winapi/customcontrols](www.zetcode.com/gui/winapi/customcontrols/) |
+| ZetCode | Burning Control | [www.zetcode.com/gui/winapi/customcontrols](https://www.zetcode.com/gui/winapi/customcontrols/) |
 | Catch22 | Custom Controls | [www.catch22.net/tuts/win32/custom-controls](https://www.catch22.net/tuts/win32/custom-controls/) |
-| Dan Brindle | Writing Windows Custom Controls \(VCR Style Button\) | [www.drdobbs.com/windows/writing-windows-custom-controls/184409155](www.drdobbs.com/windows/writing-windows-custom-controls/184409155) |
+| Dan Brindle | Writing Windows Custom Controls \(VCR Style Button\) | [www.drdobbs.com/windows/writing-windows-custom-controls/184409155](https://www.drdobbs.com/windows/writing-windows-custom-controls/184409155) |
 | Joseph M. Newcomer | Self-Registering Windows Classes \(Compass Control\) | [www.flounder.com/selfregister.htm](http://www.flounder.com/selfregister.htm) |
 
 Assemblers:
 
 | Name | Website |
 | :--- | :--- |
 | MASM32 SDK | [www.masm32.com/download.htm](https://masm32.com/download.htm) |
-| UASM \(formerly JWasm/HJWasm\) | [www.terraspace.co.uk/uasm.html](www.terraspace.co.uk/uasm.html) |
+| UASM \(formerly JWasm/HJWasm\) | [www.terraspace.co.uk/uasm.html](https://www.terraspace.co.uk/uasm.html) |
 
 Other Resources: