Adds physics_planning_games.

PiperOrigin-RevId: 331167767

README.md

@@ -51,6 +51,7 @@ https://deepmind.com/research/publications/
     Objects](graph_matching_networks), ICML 2019
 *   [REGAL: Transfer Learning for Fast Optimization of Computation Graphs](regal)
 *   [PolyGen: PolyGen: An Autoregressive Generative Model of 3D Meshes](polygen), ICML 2020
+*   [Physically Embedded Planning Problems](physics_planning_games)
 
 
 ## Disclaimer

physics_planning_games/README.md

@@ -31,14 +31,18 @@ by:
 ```
 pip3 install -r requirements.txt
 ```
-
 ### Board games
 The game logic is based on [open_spiel]. Please install as instructed [here].
 [gnugo] is required to play the game of Go against a non-random opponent. [gnugo] can be installed in Ubuntu by:
 ```
 apt install gnugo
 ```
-. Board game scripts except gnugo binary to be at: `/usr/games/gnugo`
+
+Board game scripts expect gnugo binary to be at: `/usr/games/gnugo`. Users can
+change this path inside `board_games/go_logic.py`
+
+This library has only been tested on Ubuntu.
+
 ## Example usage
 
 The code snippets below show examples of instantiating each of the environments.