Move pages under tldr, lint run.sh, update docs

tldr/blockout2

@@ -0,0 +1,29 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# blockout2
+
+> Tetris like game in 3D.
+> More information: <http://www.blockout.net/blockout2/>.
+
+- Start a new game:
+
+`blockout2`
+
+- Navigate the current piece on a 2D plane:
+
+`{{Up|Down|Left|Right arrow key}}`
+
+- Rotate the piece on its axis:
+
+`{{Q|W|E|A|S|D}}`
+
+- Hard drop the current piece:
+
+`<Spacebar>`
+
+- Pause/unpause the game:
+
+`p`