add doc-only substrate entry point crate (#14581)

* add doc-only substrate entry point crate

* document a few more things

* add more

* fix width

* Update primitives/io/src/lib.rs

Co-authored-by: Gonçalo Pestana <g6pestana@gmail.com>

* add link

* update cargo toml file

* fix sp-io docs

* improve

* small update

* add license

* satisfy license job

* add a line about FRAME

* CI happy now

* make CI more happy

* Let the check run for the whole workspace

* Forward the substrate node again as default run

* update binary names

* upate verison test

* Fix fix fix

* Fix

* rename to substrate-node in more places

* Revert "rename to substrate-node in more places"

This reverts commit 66960f84a1b6f1f7c638b4040e28e9fbabb8adf5.

* fix

* Fix build pipeline

* Fix properly plus add some docs

---------

Co-authored-by: Gonçalo Pestana <g6pestana@gmail.com>
Co-authored-by: Bastian Köcher <info@kchr.de>

substrate/bin/utils/chain-spec-builder/Cargo.toml

@@ -13,6 +13,13 @@ publish = false
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]
 
+[[bin]]
+path = "bin/main.rs"
+name = "chain-spec-builder"
+
+[lib]
+crate-type = ["rlib"]
+
 [dependencies]
 ansi_term = "0.12.1"
 clap = { version = "4.2.5", features = ["derive"] }