Minor changes

.github/workflows/.ymllint

@@ -0,0 +1,3 @@
+rules:
+
+ line-length: disable

.github/workflows/CI.yml

@@ -20,8 +20,9 @@ jobs:
         id: tag
         run: |
           VER=$(egrep ^KERNEL_VERSION build.sh|cut -d= -f2)
+          REL=$(grep "PKGREL=\d*" build.sh | cut -d = -f2)
           echo Version is $VER
-          echo "::set-output name=tag::${VER}"
+          echo "::set-output name=tag::${VER}-${REL}"
 
       - name: Upload iso artifact
         uses: actions/upload-artifact@v2

.github/workflows/instructions.txt

@@ -3,3 +3,5 @@ If you are facing blank screen after installation, try [booting using refind](ht
 Follow [this guide](https://wiki.t2linux.org/guides/wifi-bluetooth/) for Wi-Fi and Bluetooth to work.
 
 Users of **MacBookPro16,4** are recommended to use the safe graphics ISO as the kernel doesn't have the driver for their AMD Graphics Card. Rest users can use the normal ISO.
+
+The **t2-external** ISO has the internal SSD support removed in the kernel. This can be useful if you wish to install in an external SSD. After installation, you can update your kernel by running `update_t2_kernel` to a **t2** kernel which shall bring back external SSD support.