Update installation script URL in README

Author: MahiroJV

README.md

@@ -75,7 +75,7 @@ sudo pacman -S libgit2 webkit2gtk-4.1 gtk3 base-devel
 For the best experience, use the official installer:
 
 ```bash id="lnx03"
-curl -fsSL https://raw.githubusercontent.com/<repo>/install.sh | bash
+curl -fsSL https://raw.githubusercontent.com/MahiroJV/git-tree/master/install.sh | bash
 ```
 
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