minor README formatting changes

Author: santosh79

README.md

@@ -96,9 +96,9 @@ This library is still being worked on, so it does NOT support all of redis' comm
 |    |   (GenServer state and/or ETS tables)         |           |
 |    +-----------------------------------------------+           |
 +----------------------------------------------------------------+
-                                  ^
-                                  | Supervised by
-                                  v
+                            ^
+                            | Supervised by
+                            v
 +---------------------------------------------------------------+
 |                     Supervision Tree                          |
 |                                                               |
@@ -120,14 +120,14 @@ This library is still being worked on, so it does NOT support all of redis' comm
 |                  | String | |  Hash  | | List/Set |           |
 |                  +--------+ +--------+ +----------+           |
 +---------------------------------------------------------------+
-                                  |
-                                  | Uses
-                                  v
+                               |
+                               | Uses
+                               v
 +---------------------------------------------------------------+
 |                      Utility Modules                          |
-|  +----------+   +----------+   +---------------------+        |
-|  | Renamer  |   | Counter  |   |  Other Utilities    |        |
-|  +----------+   +----------+   +---------------------+        |
+|    +----------+   +----------+   +---------------------+      |
+|    | Renamer  |   | Counter  |   |  Other Utilities    |      |
+|    +----------+   +----------+   +---------------------+      |
 +---------------------------------------------------------------+
 
 +---------------------------------------------------------------+