Docs/games: Add match4 game docs

Add match4 game docs

Signed-off-by: Eren Terzioglu <eren.terzioglu@espressif.com>

Documentation/applications/games/match4/index.rst

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+=========================
+``match4`` Match4
+=========================
+
+Match4 is a classic puzzle game inspired by Connect Four and match-based logic games.
+The game is played on a matrix (e.g., 6x6, 8x8) where colored blocks fall into columns
+and the goal is to align four identical blocks in a row—vertically, horizontally, or diagonally.
+
+The objective is to match four blocks of the same color row—vertically, horizontally, or diagonally.
+As the game progresses, blocks continue to fall, and the challenge is to manage the board to avoid it filling up.
+
+The game ends if there are no available moves left (e.g., the board is full and no matches are possible) or one player
+achieve to match 4 blocks.
+
+Basic Test
+----------
+
+To play game, you need to have a led matrix (e.g. ws2812) for output
+and three gpio pins to input.
+
+Alternatively, you can give inputs using serial console by changing settings.
+
+Then you can configure and compile the game to play in your board,
+i.e. for ESP32-Devkitc there is already an example::
+
+
+    $ ./tools/configure.sh esp32-devkitc:match4
+    $ make -j flash ESPTOOL_PORT=/dev/ttyUSB0
+    $ minicom
+    nsh> match
+