Update readme, license

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2017 Moncho
+Copyright (c) 2019 Moncho
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -74,9 +74,9 @@ Keybinding           | Description
 <kbd>Ctrl+d</kbd>    | remove dangling images
 <kbd>Ctrl+e</kbd>    | remove image
 <kbd>Ctrl+f</kbd>    | remove image (force)
+<kbd>Ctrl+u</kbd>    | remove unused images
 <kbd>Enter</kbd>     | inspect
 
-
 #### Network commands
 
 Keybinding           | Description
@@ -96,7 +96,6 @@ Keybinding           | Description
 <kbd>Ctrl+u</kbd>    | update service
 <kbd>Enter</kbd>     | show service tasks
 
-
 #### Moving around buffers
 
 Keybinding           | Description
@@ -111,7 +110,6 @@ Keybinding           | Description
 <kbd>pg up</kbd>     | move the cursor "screen size" lines up
 <kbd>pg down</kbd>   | move the cursor "screen size" lines down
 
-
 ## Installation
 
 The easiest way to install the latest binaries for Linux and Mac is to run this in a shell:
@@ -141,7 +139,7 @@ brew install dry
 
 #### Docker
 
-```docker run -it -v  /var/run/docker.sock:/var/run/docker.sock moncho/dry ```
+```docker run -it -v  /var/run/docker.sock:/var/run/docker.sock moncho/dry```
 
 #### Arch Linux