Updated documentation

Update version (it's 1.9.8 now). Also update broken links to some tutorials.

Author: boriel

docs/archive.md

@@ -51,7 +51,7 @@ Using these versions is encouraged since they fix many bugs already in the stabl
 You can contribute to ZX BASIC by using devel versions and reporting possible bugs or improvement
 suggestions at the [forum](http://www.boriel.com/forum).
 
-Click on the icon to download latest stable version (<span style="color: green;">**1.9.7**</span>):
+Click on the icon to download latest stable version (<span style="color: green;">**1.9.8**</span>):
 
 * [<img src="https://zxbasic.readthedocs.io/en/latest/img/zip-package-2.png" alt="win32zip" width="32px"/> http://www.boriel.com/files/zxb/zxbasic-1.9.8-win32.zip](http://www.boriel.com/files/zxb/zxbasic-1.9.8-win32.zip)
 <br />Windows .exe zip package. No install needed, just uncompress it in a directory of your choice.

docs/tutorials.md

@@ -10,7 +10,7 @@ Link: [http://goo.gl/4jPd5](http://goo.gl/4jPd5)
 ##Making ZX Basic to work with Tommy Gun
 
 Author: Boriel<br />
-Link: [http://www.boriel.com/forum/how-to-tutorials/making-zx-basic-to-work-with-tommy-gun-t329.html](http://www.boriel.com/forum/how-to-tutorials/making-zx-basic-to-work-with-tommy-gun-t329.html)
+Link: [https://www.boriel.com/forum/showthread.php?tid=110](https://www.boriel.com/forum/showthread.php?tid=110)
 
 ##How to Use Inline Assembly
 
@@ -32,4 +32,4 @@ and via [Google](http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_
 ##Using Beepola with ZX BASIC
 
 Author: LTee<br />
-Link: [http://www.boriel.com/forum/how-to-tutorials/using-beepola-with-zx-basic-t660.html](http://www.boriel.com/forum/how-to-tutorials/using-beepola-with-zx-basic-t660.html)
+Link: [https://www.boriel.com/forum/showthread.php?tid=368](https://www.boriel.com/forum/showthread.php?tid=368)