docs: add image-template link in DIY section (#205)

README.md

@@ -40,6 +40,7 @@ Please take a look at the included modifications, and help us improve uCore if t
   - [ZFS](#zfs)
     - [ZFS and immutable root filesystem](#zfs-and-immutable-root-filesystem)
     - [Sanoid/Syncoid](#sanoidsyncoid)
+- [DIY](#diy)
 - [Metrics](#metrics)
 
 ## Features
@@ -517,6 +518,12 @@ sanoid/syncoid is a great tool for manual and automated snapshot/transfer of ZFS
 
 `ucore` has pre-install all the (lightweight) required dependencies (perl-Config-IniFiles perl-Data-Dumper perl-Capture-Tiny perl-Getopt-Long lzop mbuffer mhash pv), such that a user wishing to use sanoid/syncoid only need install the "sbin" files and create configuration/systemd units for it.
 
+## DIY
+
+Is all this too easy, leaving you with the desire to create a custom uCore image?
+
+Then [create an image `FROM ucore`](https://github.com/ublue-os/image-template) using our [image template](https://github.com/ublue-os/image-template)!
+
 ## Metrics
 
 ![Alt](https://repobeats.axiom.co/api/embed/07d1ed133f5ed1a1048ea6a76bfe3a23227eedd5.svg "Repobeats analytics image")