Fix typo in CONTRIBUTORS, move licenses around

Having a LICENSE file makes github happy

src/c2.c

@@ -6,7 +6,7 @@
  * Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
  *
  * Copyright (c) 2011-2013, Christopher Jeffrey
- * See LICENSE for more information.
+ * See LICENSE-mit for more information.
  *
  */
 

src/c2.h

@@ -5,7 +5,7 @@
  * Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
  *
  * Copyright (c) 2011-2013, Christopher Jeffrey
- * See LICENSE for more information.
+ * See LICENSE-mit for more information.
  *
  */
 

src/common.h

@@ -7,7 +7,7 @@
  * Copyright (c) 2011-2013, Christopher Jeffrey
  * Copyright (c) 2018, Yuxuan Shui <yshuiv7@gmail.com>
  *
- * See LICENSE for more information.
+ * See LICENSE-mit for more information.
  *
  */
 

src/compton.c

@@ -5,7 +5,7 @@
  * Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
  *
  * Copyright (c) 2011-2013, Christopher Jeffrey
- * See LICENSE for more information.
+ * See LICENSE-mit for more information.
  *
  */
 

src/dbus.c

@@ -5,7 +5,7 @@
  * Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
  *
  * Copyright (c) 2011-2013, Christopher Jeffrey
- * See LICENSE for more information.
+ * See LICENSE-mit for more information.
  *
  */
 

src/dbus.h

@@ -5,7 +5,7 @@
  * Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
  *
  * Copyright (c) 2011-2013, Christopher Jeffrey
- * See LICENSE for more information.
+ * See LICENSE-mit for more information.
  *
  */
 

src/opengl.c

@@ -5,7 +5,7 @@
  * Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
  *
  * Copyright (c) 2011-2013, Christopher Jeffrey
- * See LICENSE for more information.
+ * See LICENSE-mit for more information.
  *
  */
 

src/opengl.h

@@ -5,7 +5,7 @@
  * Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
  *
  * Copyright (c) 2011-2013, Christopher Jeffrey
- * See LICENSE for more information.
+ * See LICENSE-mit for more information.
  *
  */