Update 'Creating Packages'

Creating-Packages.md

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+Creating packages should be fairly straightforward.
+
+Before you begin, this guide assumes you have `gpc` installed.
+
+First, obtain the source tree of the program you wish to package.
+
+Next, import the Glacier package template:
+
+	`$ wget https://git.everestlinux.org/EverestLinux/glacier-pkg-template/raw/branch/main/template.tar.gz && tar -xvf template.tar.gz && mv template/* . && rmdir template`
+    
+Edit the `pkginfo.json` file accordingly.
+
+Edit the `INSTALL.sh`, `UPDATE.sh`, and `REMOVE.sh` files. Each should outline the commands needed for each operation.
+
+Ensure the timestamp file is correct.
+
+From outside the working directory, run:
+
+	`$ gpc check package_name`
+
+If all tests return as successful, run:
+
+	`$ gpc mkpkg package_name`