[Add Grain] add link to grain font in docs and script

Author: PhosCity

docs/Add Grain.md

@@ -2,7 +2,7 @@
 
 [Link to script](https://github.com/PhosCity/Aegisub-Scripts/blob/main/macros/phos.AddGrain.moon)
 
-The script `Add Grain` allows you to emulate the grain texture in your sign. This script closely follows the manual approach of creating grain from this [guide](<https://fansubbers.miraheze.org/wiki/Guide:Adding_film_grain_(typesetting)>). All you need to do before using this script is to install the grain font from this [link](https://cdn.discordapp.com/attachments/425357202963038208/708726507173838958/grain.ttf)
+The script `Add Grain` allows you to emulate the grain texture in your sign. This script closely follows the manual approach of creating grain from this [guide](<https://fansubbers.miraheze.org/wiki/Guide:Adding_film_grain_(typesetting)>). All you need to do before using this script is to install the grain font from this [link](https://github.com/PhosCity/Aegisub-Scripts/tree/main/misc/Grain%20Font)
 
 # Usage
 

macros/phos.AddGrain.moon

@@ -1,6 +1,6 @@
 export script_name = "Add Grain"
 export script_description = "Add static and dynamic grain"
-export script_version = "1.1.4"
+export script_version = "1.1.5"
 export script_author = "PhosCity"
 export script_namespace = "phos.AddGrain"
 
@@ -36,7 +36,7 @@ isGrainInstalled = ->
   message = "It seems you have not installed grain font.
 The script will proceed but will not look as intended unless you install the font.
 You can install it from following link:
-https://cdn.discordapp.com/attachments/425357202963038208/708726507173838958/grain.ttf"
+https://github.com/PhosCity/Aegisub-Scripts/tree/main/misc/Grain%20Font"
 
   for font in *Yutils.decode.list_fonts!
     return if font.name == "Grain" and font.longname == "Grain Regular"