chore: correct README link

Author: sunng87

Cargo.toml

@@ -12,7 +12,6 @@ keywords = ["database", "postgresql", "datafusion"]
 homepage = "https://github.com/sunng87/datafusion-postgres/"
 repository = "https://github.com/sunng87/datafusion-postgres/"
 documentation = "https://docs.rs/crate/datafusion-postgres/"
-readme = "README.md"
 
 [workspace.dependencies]
 pgwire = "0.30.2"

datafusion-postgres-cli/Cargo.toml

@@ -9,7 +9,7 @@ keywords.workspace = true
 homepage.workspace = true
 repository.workspace = true
 documentation.workspace = true
-readme.workspace = true
+readme = "../README.md"
 
 [dependencies]
 pgwire = { workspace = true }

datafusion-postgres/Cargo.toml

@@ -9,7 +9,7 @@ keywords.workspace = true
 homepage.workspace = true
 repository.workspace = true
 documentation.workspace = true
-readme.workspace = true
+readme = "../README.md"
 
 [dependencies]
 async-trait = "0.1"