fixing more links

.github/workflows/validate-links.yml

@@ -1,8 +1,5 @@
----
-
 name: CI
 on: [push]
-
 jobs:
   validate-links:
     runs-on: ubuntu-latest
@@ -11,8 +8,7 @@ jobs:
         id: go
         with:
           go-version: "^1.18.2"
-
       - uses: actions/checkout@v3.0.2
-
       - run: go install github.com/ellisonleao/vl/cmd/vl@latest
-      - run: vl -a 503,403 -t 30s -w horde3d.org,p1.untergrund.net,bfxr.net README.md
+      - run: vl -a 503,403 -t 30s -w poly.pizza,horde3d.org,p1.untergrund.net,bfxr.net,tigsource.com,gamesounds.xyz
+          README.md

README.md

@@ -166,7 +166,7 @@ _Great graphics placeholders and tools to turn that squared game into a picasso
 - :moneybag: [3ds Max](http://www.autodesk.com/products/3ds-max/overview)
 - :moneybag: [modo](https://www.foundry.com/products/modo)
 - :free: [Clara.io](https://clara.io/)
-- :moneybag: [ZBrush](http://pixologic.com/)
+- :moneybag: [ZBrush](https://pixologic.com/)
 
 #### Terrain Generators