message: fixing syntax
  line 21: Take following directory -> Take the following directory
  line 59: carefully -> careful
  line 63: adds the
diff: @@ -16,8 +16,9 @@ Command `ckb init` initializes a directory by exporting the config files.
  Some config file may refer to other files, for example, `chain.spec` in
  `ckb.toml` and `system_cells` in chain spec file. The file is referred via
  either absolute path, or a path relative to the directory containing the
  -config file currently being parsed. Take following directory hierarchy as an
  -example:
  +config file currently being parsed.
  +
  +Take the following directory hierarchy as an example:
  ```
  ckb.toml
  @@ -56,11 +57,11 @@ Here is an example to export config files for Pudge, the testnet.
  ckb init --chain testnet
  ```
  -Nodes running different chain specs cannot synchronize with each other, so be carefully when editing this option.
  +Nodes running different chain specs cannot synchronize with each other, so be careful when editing this option.
  The dev chain reads the chain spec from file `specs/dev.toml`, developers can edit to switch between different PoW engines.
  -CKB now supports following PoW Engines.
  +CKB now supports the following PoW Engines.
  ### Eaglesong
  