Update README.md

themes/ocean/README.md

@@ -3,7 +3,7 @@
 A fish theme with ocean in mind.
 
 
-![Preview](preview.png)
+![Preview](https://cloud.githubusercontent.com/assets/129920/3533761/4702cc78-07d9-11e4-826f-e9f797e4bfa8.png)
 
 
 Unicode-compatible fonts and terminals is required.
@@ -13,15 +13,14 @@ I would recommend iTerm2 + Solarized Dark for Mac users.
 This theme is based loosely on [agnoster](https://gist.github.com/agnoster/3712874)
 
 #### Characteristics
-* Show a radioactive symbol when gain the root privileges (It's dangerous!)
+* Show a radioactive symbol (☢) when gain the root privileges (It's dangerous!)
 * Current python virtualenv (if applicable)
-* The anchor turn red if the previous command failed
+* The anchor (⚓) turns red if the previous command failed
 * Full path of current working directory
-* Git branch and dirty state (if applicable)
-* Show User @ Hostname if user is not default\_user
-    to turn on this feature, set these two lines in your config.fish
-    ```
+* Show the Git branch and dirty state (if applicable)
+* Show **User@Hostname** if user is not the default user. Set the following two lines in your config.fish in your config.fish to turn on this feature:
+    
+    ```fish
     set -g theme display_user yes
-
     set -g default_user your_default_username
     ```