Fixed a typo in Package Manifest

Author: 9prady9

Cargo.toml

@@ -4,7 +4,7 @@ description   = "ArrayFire is a high performance software library for parallel c
 version       = "3.0.0"
 documentation = "http://arrayfire.github.io/arrayfire-rust/arrayfire/index.html"
 homepage      = "https://github.com/arrayfire/arrayfire"
-respository   = "https://github.com/arrayfire/arrayfire-rust"
+repository    = "https://github.com/arrayfire/arrayfire-rust"
 authors       = ["Pradeep Garigipati <pradeep@arrayfire.com>", "Jason Ramapuram <jason.ramapuram@gmail.com>"]
 readme        = "./README.md"
 keywords      = ["CUDA", "OpenCL", "ArrayFire", "Compute"]