Added Day 3 gitignore (lazy)

day2/README.md

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+# AOC 2023 Day 2 (Garry's Mod)
+
+This is a set of scripts designed to be used with the StarfallEx addon for Garry's Mod.
+
+### Requirements:
+- Garry's Mod
+- [Wiremod](https://github.com/wiremod/wire)
+- [StarfallEx](https://github.com/thegrb93/StarfallEx)
+
+### Usage:
+1. Put your input data in `$GMOD_PATH/garrysmod/data/sf_filedata/aoc2023d2input.txt` (Extension is important!)
+2. Spawn chip with the correct script

day2/sample

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+Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green
+Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue
+Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red
+Game 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red
+Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green

day3/.gitignore

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+*
+
+!.gitignore
+!answer*
+!*.c
+*.mod.c
+!sample*
+!README.md
+!LICENSE.md
+!Makefile