Update members (#702)

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### Summary

Removes a dead project and updates a documentation link as per
maintainer request.

ecosystem/resources/members/circuit-knitting-toolbox.toml

@@ -9,3 +9,4 @@ created_at = 1670427445.884067
 updated_at = 1670427445.884068
 stars = 66
 group = "other"
+documentation = "https://qiskit-extensions.github.io/circuit-knitting-toolbox/"