Fixing dto_mapper documentation link (#9)

Author: douggynix

Cargo.toml

@@ -6,7 +6,7 @@ authors = ["James Douglass Lefruit"]
 description = "A library to create dynamic DTOs (Data Transfer Object) from a structure"
 repository = "https://github.com/douggynix/dto_mapper"
 homepage = "https://github.com/douggynix/dto_mapper"
-documentation = "https://github.com/douggynix/dto_mapper/tree/0.1.2"
+documentation = "https://github.com/douggynix/dto_mapper/tree/0.1.3"
 readme = "README.md"
 license = "Apache-2.0"
 categories = ["data-structures", "web-programming", "rust-patterns"]