add links to functions and structs in the rustdocs
add links to functions and structs in the rustdocs

AssafKatz3/pact-reference,pact-foundation/pact-reference,AssafKatz3/pact-reference,pact-foundation/pact-mock-server,AssafKatz3/pact-reference,pact-foundation/pact-reference,pact-foundation/pact-reference,pact-foundation/pact-reference,pact-foundation/pact-reference,AssafKatz3/pact-reference,pact-foundation/pact-reference,pact-foundation/pact-reference,pact-foundation/pact-reference