Readme tweaks (#391)

* [skip ci] Add logo to readme

* [skip ci] README: add CurseForge and Modrinth links

README.MD

@@ -1,4 +1,7 @@
-# Angelica
+# Angelica<img src="img/logo-readme.png" align="right">
+
+<sup>**[CurseForge](https://www.curseforge.com/minecraft/mc-mods/angelica) | [Modrinth](https://modrinth.com/mod/angelica)**</sup>
+
 * The little Angle [sic] that supports shaders while saving your fps from a certain death -boubou
 * Is it obtuse, or accute? -Caedis
 * It's a cute angle -mitchej123

img/logo-readme.png.generate.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+magick convert logo-1x.png -scale 200% \( +clone -background black -shadow 60x6+0+0 \) +swap -background none -layers merge logo-readme.png