Put links to Arabic translation of Anki manual

[abdnh]

This updates the Anki manual links to point to the translated version.

There are still some linkcheck errors originating from links to github.com and groups.google.com. These are harder to fix. What do you think about excluding them from all manuals using something like this?

diff --git a/mdbook/ar/book.toml b/mdbook/ar/book.toml
index 076e38c..1de2f44 100644
--- a/mdbook/ar/book.toml
+++ b/mdbook/ar/book.toml
@@ -23,6 +23,7 @@ renderer = ["html"]
 optional = true
 warning-policy = "warn"
 follow-web-links = true
+exclude = [ 'github.com', 'groups.google.com']
 
 [output.html.fold]
 enable = true

warning-policy = "warn" should prevent the build from failing AFAIK, but it's not working for some reason. I'll investigate why.

[krmanik]

Hi, Sorry, But I didn't get notification for this. I don't know why. I will merge it now.
Thanks