add a readme

ReadMe.md

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+# Hal's Vehicle Framework
+a simple to use but powerful vehicle library for Minecraft Forge 1.16.5, 1.20.1, and 1.21.1
+
+## Getting Started
+after importing the library, to create an entity with the framework you structure it as so
+### The entity itself:
+``` 
+public class [MyVehicleClass] extends VehicleBaseEntity {
+
+    private static final VehicleBuildInfo buildInfo = new VehicleBuildInfo(VehicleClassification. [classification] )
+            .SetEngineCount(2)                                      //example properties
+            .SetEngineType(EngineCategories.Aircraft_Propeller)     //this example uses the Zepplin vehicle properties
+            .SetMaxEngineRPM(3000)
+            .SetMaxSpeedMS(70)
+            .SetGasCelCount(8)
+            .SetGasCelCapacity(1000);
+
+    public Airboat(EntityType<?> Type, World WorldIn) {
+        super(Type, WorldIn, new Vector3d[]{new Vector3d(0.0D, -1D, 0.0D)}, buildInfo); // The super class handles everything entity related
+        VehicleCameraSettings.AddEntityCameraPreset(this.getType(),
+                new VehicleCameraPreset(new Vector3f(0,4.0f, 16.0f),
+                new Vector3f(0,0,0),70,65f));
+    }
+}
+```
+### The entity renderer:
+```
+@OnlyIn(Dist.CLIENT)
+public class [MyVehicleRenderer] extends VehicleBaseRenderer {
+
+    public AirboatRenderer(EntityRendererManager renderManagerIn) {
+        super(renderManagerIn, new EntityModel<?>[]{new [MyVehicleModel] ()},"textures/entities/ [MyVehicleTexture] .png"   );
+    }
+}
+```
+### Registering the entity
+you register the entity as if it were any other entity
+```
+    public static DeferredRegister<EntityType<?>> ENTITY_TYPES = DeferredRegister.create(ForgeRegistries.ENTITIES, MOD_ID);
+
+    public static final RegistryObject<EntityType< [MyVehicleClass] >> MY_VEHICLE =
+            ENTITY_TYPES.register("my_vehicle", ()-> EntityType.Builder.create( [MyVehicleClass] ::new,
+                    EntityClassification.MISC ).size(3f,2f).build(new ResourceLocation(MOD_ID, "my_vehicle").toString()));
+```
+### Registering the renderer
+this is also the same as if it were any other entity, it is put in the client event handler
+```
+@Mod.EventBusSubscriber(modid = MOD_ID, bus = Mod.EventBusSubscriber.Bus.MOD, value = Dist.CLIENT)
+public class ClientEventHandler {
+    @SubscribeEvent
+    public static void init(final FMLClientSetupEvent event) {
+        RenderingRegistry.registerEntityRenderingHandler(ModEntities.MY_VEHICLE.get(),  [MyVehicleRenderer] ::new);
+    }
+}
+```