docs: fix broken doc (conda#374)

py-rattler/docs/index.md

@@ -86,7 +86,7 @@ async def main():
     channel = Channel("conda-forge")
 
     # list of dependencies to install in the env
-    match_spec = [
+    match_specs = [
         MatchSpec("python ~=3.12.*"),
         MatchSpec("pip"),
         MatchSpec("requests 2.31.0")
@@ -95,6 +95,8 @@ async def main():
     # list of platforms to get the repo data
     platforms = [Platform.current(), Platform("noarch")]
 
+    virtual_packages = [p.into_generic() for p in VirtualPackage.current()]
+
     cache_path = "/tmp/py-rattler-cache/"
     env_path = "/tmp/env-path/env"
 
@@ -108,8 +110,9 @@ async def main():
     print("finished fetching repo_data")
 
     solved_dependencies = solve(
-        specs = [match_spec],
+        specs = match_specs,
         available_packages = repo_data,
+        virtual_packages = virtual_packages,
     )
     print("solved required dependencies")