docs: Extends #999. Remove disused package readmes. Rename to sr-metadata. Fix Readme Rustdoc names (#1016)

* docs: Remove safe-mix since is no longer local dependency

* docs: Fix existing packages link. Still only includes Substrate Core

* docs: Remove empty package Readmes. Remove old docs links. Rename to Readme

* docs: Remove link to old docs

* misc: Merge latest from master. Renaem to sr-metadata. Fix list of RustDoc package names

* Rename substrate-metadata to sr-metadata, since it is in the "srml" subdirectory

* Change example to use package name that opens all packages in RustDocs

* Fix list of packages names that are available to open in RustDocs

* fix typo

* fix ordering of CLI options and add missing backslash

substrate/node/runtime/wasm/Cargo.lock

@@ -702,6 +702,16 @@ dependencies = [
  "srml-system 0.1.0",
 ]
 
+[[package]]
+name = "srml-metadata"
+version = "0.1.0"
+dependencies = [
+ "parity-codec 2.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-codec-derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.79 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.79 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "srml-session"
 version = "0.1.0"
@@ -755,7 +765,7 @@ dependencies = [
  "sr-io 0.1.0",
  "sr-primitives 0.1.0",
  "sr-std 0.1.0",
- "substrate-metadata 0.1.0",
+ "srml-metadata 0.1.0",
 ]
 
 [[package]]
@@ -844,16 +854,6 @@ dependencies = [
  "substrate-primitives 0.1.0",
 ]
 
-[[package]]
-name = "substrate-metadata"
-version = "0.1.0"
-dependencies = [
- "parity-codec 2.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "parity-codec-derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.79 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.79 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "substrate-primitives"
 version = "0.1.0"

substrate/node/src/main.rs

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
 
-//! Substrate CLI
+//! Substrate Node CLI
 
 #![warn(missing_docs)]