Add missing argument and improve documentation

I'm not 100% sure as to what the arguments do exactly because the behavior of the native changes depending on whether oal is enabled or not, not sure what's going on there, I'm assuming this is due to the missing argument.

Without OAL it always does the non flashing fade in, and with OAL it always does the flashing fade in, even though this is not the actual missing argument.

NETWORK/NetworkFadeInEntity.md

@@ -8,17 +8,28 @@ ns: NETWORK
 void NETWORK_FADE_IN_ENTITY(Entity entity, BOOL state);
 ```
 
-```
-state - 0 does 5 fades  
-state - 1 does 6 fades  
-native is missing third argument, also boolean, setting to 1 made vehicle fade in slower, probably "slow" as per NETWORK_FADE_OUT_ENTITY  
-```
+Fade the given entity back in, usually used after the entity has been faded out with [NETWORK_FADE_OUT_ENTITY](#_0xDE564951F95E09ED)
+
+When used on a entity which isn't invisible or faded out then the native will still work, it will just instanly make the ped invisible before fading in.
 
-```
-NativeDB Added Parameter 3: BOOL slow
-```
 
 ## Parameters
-* **entity**: 
-* **state**: 
+* **entity**: The entity to fade in
+* **flash**: When set to true the entity will flash rapidly while fading out
+* **slow**: When set to true the fadein will be a little bit slower than normal
 
+## Examples
+
+```lua
+NetworkFadeOutEntity(PlayerPedId(), false, false)
+while NetworkIsEntityFading(PlayerPedId()) do
+  Citizen.Wait(0)
+end
+
+--- Do something like a teleport, or warp into a vehicle
+
+NetworkFadeInEntity(PlayerPedId(), false, false)
+while NetworkIsEntityFading(PlayerPedId()) do
+  Citizen.Wait(0)
+end
+```