Update namespace_metadata.json

namespace_metadata.json

@@ -1 +1 @@
-{"datasets": ["webagents/weblinx-v0"], "license": "CC-BY-NC-SA-4.0"}
+{"datasets": ["webagents/weblinx-v0"], "license": "CC-BY-NC-SA-4.0", "description": "This dataset group aims to collect various datasets of web interactions from expert agents, human labelers, and other dataset collection methodologies."}