Refine README (#10)

* docs(readme): simplify command to disable terminal flow control

* docs(readme): specify the destination of the code

README.md

@@ -35,7 +35,7 @@ Usage
   >   <kbd>CTRL-B</kbd> is used as the tmux prefix
   > * <kbd>CTRL-G</kbd><kbd>CTRL-S</kbd> will not work if flow control is enabled,
   >   <kbd>CTRL-S</kbd> will freeze the terminal instead
-  >     * (`stty -ixoff -ixon` will disable it)
+  >     * (`stty -ixon` will disable it)
   >
   > To workaround the problems, you can use
   > <kbd>CTRL-G</kbd><kbd>*{key}*</kbd> instead of
@@ -63,7 +63,7 @@ Defining shortcut commands
 --------------------------
 
 Each binding is backed by `_fzf_git_*` function so you can do something like
-this.
+this in your shell configuration file.
 
 ```sh
 gco() {