docs(cargo): Declare the spec version in the version

Author: epage

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "toml"
-version = "0.9.8"
+version = "0.9.8+spec-1.0.0"
 description = """
 A native Rust encoder and decoder of TOML-formatted files and streams. Provides
 implementations of the standard Serialize/Deserialize traits for TOML data to

crates/toml/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "toml_datetime"
-version = "0.7.3"
+version = "0.7.3+spec-1.0.0"
 description = "A TOML-compatible datetime type"
 categories = ["encoding", "parser-implementations", "parsing", "config"]
 keywords = ["encoding", "toml", "no_std"]

crates/toml_datetime/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "toml_edit"
-version = "0.23.9"
+version = "0.23.9+spec-1.0.0"
 description = "Yet another format-preserving TOML parser."
 categories = ["encoding", "parser-implementations", "parsing", "config"]
 keywords = ["encoding", "toml"]

crates/toml_edit/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "toml_parser"
-version = "1.0.4"
+version = "1.0.4+spec-1.0.0"
 description = "Yet another format-preserving TOML parser."
 categories = ["encoding", "parser-implementations", "parsing", "config"]
 keywords = ["encoding", "toml", "no_std"]

crates/toml_parser/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "toml_writer"
-version = "1.0.4"
+version = "1.0.4+spec-1.0.0"
 description = """
 A low-level interface for writing out TOML
 """

crates/toml_writer/Cargo.toml

@@ -1,2 +1,3 @@
 owners = ["github:toml-rs:maintainers"]
 allow-branch = ["main"]
+metadata = "persistent"