manual and readme updt

MANUAL_EN.md

@@ -14,13 +14,13 @@ On the first screen, you can configure gameplay options:
 * frequency of suicides :) - if for a number of turns the game has not recorded hits (tanks are constantly shooting inaccurately), after one of such misses a tank commits suicide - here you determine how long they can "shooting for the stars" :) - if only people play the optimal setting is "norm", in the case of computer-controlled players ... you choose.
 * The height (and undulation) of the mountains from almost flat (NL - Kingdom of the Netherlands), to soaring and high (NP - Federal Democratic Republic of Nepal)
 * the way the walls (edges of the screen) work:
-	* none - projectiles that flew off the screen do not return
-	* wrap - the screen "wraps" and projectiles that flew to the right appear on the left side (and vice versa)
-	* bump - the right and left walls deflect projectiles that want to fly through them
-	* boxy - just like bump, except that the "ceiling" also reflects projectiles
-	* rand - at the beginning of each round, one of the above 4 ways the walls work is drawn.
-	
-	During gameplay, the current mode of the walls is represented by the color of the screen frame: none - black, wrap - purple, bump - blue, boxy - green.
+    * none - projectiles that flew off the screen do not return
+    * wrap - the screen "wraps" and projectiles that flew to the right appear on the left side (and vice versa)
+    * bump - the right and left walls deflect projectiles that want to fly through them
+    * boxy - just like bump, except that the "ceiling" also reflects projectiles
+    * rand - at the beginning of each round, one of the above 4 ways the walls work is drawn.
+
+    During gameplay, the current mode of the walls is represented by the color of the screen frame: none - black, wrap - purple, bump - blue, boxy - green.
 
 Select options with cursor keys or a joystick.