Fix github links to pret's.

INSTALL.md

@@ -377,7 +377,7 @@ If this works, then proceed to [Installation](#installation). Otherwise, ask for
 1. If pokeemerald is not already downloaded (some users may prefer to download pokeemerald via a git client like GitHub Desktop), run:
 
     ```bash
-    git clone https://github.com/luckytyphlosion/pokeemerald
+    git clone https://github.com/pret/pokeemerald
     ```
 
     <details>
@@ -397,7 +397,7 @@ If this works, then proceed to [Installation](#installation). Otherwise, ask for
 - If agbcc has **not been built before** in the folder where you chose to store pokeemerald, run the following commands to build and install it into pokeemerald:
 
     ```bash
-    git clone https://github.com/luckytyphlosion/agbcc
+    git clone https://github.com/pret/agbcc
     cd agbcc
     ./build.sh
     ./install.sh ../pokeemerald