Update metadata/changelogs.

apps/tetris/ChangeLog

@@ -0,0 +1,2 @@
+0.01: New app!
+0.02: Better controls, implement game over.

apps/tetris/README.md

@@ -4,5 +4,5 @@ Bangle version of the classic game of Tetris.
 
 ## Controls
 
-Tapping the screen rotates the pieces once, swiping left, right or down moves the
-piece in that direction, if possible.
+Tap top part of screen to rotate and move down, tap bottom part to
+move left/right.

apps/tetris/metadata.json

@@ -7,6 +7,8 @@
   "readme": "README.md",
   "tags": "game",
   "supports" : ["BANGLEJS2"],
+  "allow_emulator": true,
+  "readme": "README.md",
   "storage": [
     {"name":"tetris.app.js","url":"tetris.app.js"},
     {"name":"tetris.img","url":"app-icon.js","evaluate":true}