Fix documentation

- fix document generate script in README
- tab format in Cargo.toml at root
- fix cli doc string with correct crate name

Cargo.toml

@@ -3,14 +3,14 @@ panic = 'unwind'
 
 [workspace]
 members = [
-	"core/cli",
-	"core/ethash",
+    "core/cli",
+    "core/ethash",
 #    "core/merkle-mountain-range",
 #    "core/fly-client",
     "core/sr-eth-primitives",
     "core/merkle-patricia-trie",
 
-	"node/cli",
+    "node/cli",
     "node/executor",
     "node/primitives",
     "node/rpc",

README.adoc

@@ -316,18 +316,21 @@ curl -H 'Content-Type: application/json' --data '{ "jsonrpc":"2.0", "method":"au
 You can generate documentation for a Darwinia Rust package and have it automatically open in your web browser using https://doc.rust-lang.org/rustdoc/what-is-rustdoc.html#using-rustdoc-with-cargo[rustdoc with Cargo],
 (of the The Rustdoc Book), by running the following command:
 
+```
+cargo doc --open
+```
+
+If you just want to generate document from specific package, you may use following command:
+
 ```
 cargo doc --package <spec> --open
 ```
 
-Replacing `<spec>` with one of the following (i.e. `cargo doc --package darwinia --open`):
+Replacing `<spec>` with one of the following (i.e. `cargo doc --package darwinia-cli --open`):
 
-* All Darwinia Packages
-[source, shell]
-darwinia
 * Darwinia Core
 [source, shell]
-darwinia, darwinia-cli, ethash, fly-client,
+darwinia-cli, ethash, fly-client,
 merkle-mountain-range, merkle-patricia-trie, sr-eth-primitives
 * Darwinia Runtime Module Library
 [source, shell]

node/cli/bin/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 Node CLI
+//! Darwinia
 
 #![warn(missing_docs)]
 

node/cli/src/lib.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 library.
+//! Darwminia CLI library.
 
 #![warn(missing_docs)]
 #![warn(unused_extern_crates)]