add readme, license and optimize files

LICENSE.txt

@@ -0,0 +1,502 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
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+That's all there is to it!

README.md

@@ -1,3 +1,89 @@
-# x_bows
+# Bow and Arrows [x_bows]
 
 Adds bow and arrows to Minetest.
+
+<!-- ![screenshot](screenshot.png) -->
+
+## Features
+
+
+## Dependencies
+
+- none
+
+## Optional Dependencies
+
+- farming
+  - bow and target recipes
+- 3d_armor
+  - calculates damage including the armor
+- hbhunger
+  - changes hudbar when poisoned
+- mesecons
+  - target can be used to trigger mesecon signal
+- playerphysics
+  - force sneak when holding charged bow
+
+## License:
+
+### Code
+
+GNU Lesser General Public License v2.1 or later (see included LICENSE file)
+
+### Textures
+
+**CC BY-SA 4.0, Pixel Perfection by XSSheep**, https://minecraft.curseforge.com/projects/pixel-perfection-freshly-updated
+
+- x_bows_bow_wood.png
+- x_bows_bow_wood_charged.png
+- x_bows_arrow_wood.png
+- x_bows_arrow_tile_point_top.png
+- x_bows_arrow_tile_point_right.png
+- x_bows_arrow_tile_point_bottom.png
+- x_bows_arrow_tile_point_left.png
+- x_bows_arrow_tile_tail.png
+- x_bows_arrow_particle.png
+- x_bows_arrow_tipped_particle.png
+- x_bows_bubble.png
+- x_bows_target.png
+
+Modified by SaKeL:
+
+- x_bows_arrow_stone.png
+- x_bows_arrow_bronze.png
+- x_bows_arrow_steel.png
+- x_bows_arrow_mese.png
+- x_bows_arrow_diamond.png
+- x_bows_arrow_diamond_poison.png
+
+### Sounds
+
+**Creative Commons License, EminYILDIRIM**, https://freesound.org
+
+- x_bows_bow_load.1.ogg
+- x_bows_bow_load.2.ogg
+- x_bows_bow_load.3.ogg
+
+**Creative Commons License, bay_area_bob**, https://freesound.org
+
+- x_bows_bow_loaded.ogg
+
+**Creative Commons License**, https://freesound.org
+
+- x_bows_bow_shoot_crit.ogg
+
+**Creative Commons License, robinhood76**, https://freesound.org
+
+- x_bows_bow_shoot.1.ogg
+- x_bows_arrow_hit.1.ogg
+- x_bows_arrow_hit.2.ogg
+- x_bows_arrow_hit.3.ogg
+
+
+**Creative Commons License, natty23**, https://freesound.org
+
+- x_bows_arrow_successful_hit.ogg
+
+## Installation
+
+see: http://wiki.minetest.com/wiki/Installing_Mods