Update README

- Add Steps to Run a Yocto Build using ubuntu-distro docker image [1]

[1]: https://github.com/cshilwant/ti-docker-images/pkgs/container/ubuntu-distro

Signed-off-by: Chirag Shilwant <c-shilwant@ti.com>

README.md

@@ -1 +1,47 @@
-# docker-images
+# ti-docker-images
+
+This repository provides a ubuntu 22.04 based docker image with all the packages that are required for Yocto Builds. 
+The docker image can also be used to Install & Build via Top Level Makefile from sources for [TI Arm based microprocessors](https://www.ti.com/microcontrollers-mcus-processors/arm-based-processors/products.html)
+
+## Steps to Run Yocto builds inside Container
+
+### 1. Pulls the Docker Image & Starts a Container
+
+```sh
+# On Host
+host# export WORK_DIR=<path-to-your-host-where-you-want-to-start-yocto-build>
+host# docker run --privileged -it -v ${WORK_DIR}:/home/tisdk -v /dev:/dev -v /media/:/media/ -w /home/tisdk ghcr.io/cshilwant/ubuntu-distro:latest
+
+# Inside Container Now
+tisdk@9b297a000db9~$ 
+tisdk@9b297a000db9:~$ pwd
+/home/tisdk
+```
+
+> #### 📝 If working behind a proxy, ensure [to setup the network proxy](https://wiki.yoctoproject.org/wiki/Working_Behind_a_Network_Proxy)
+
+### 2. Start Yocto Build
+
+
+```sh
+tisdk@9b297a000db9:~$ pwd
+/home/tisdk
+
+# Clone oe-layersetup
+tisdk@9b297a000db9:~$ git clone https://git.ti.com/git/arago-project/oe-layersetup.git tisdk
+tisdk@9b297a000db9:~$ cd tisdk
+tisdk@9b297a000db9:~$ ./oe-layertool-setup.sh -f configs/processor-sdk/<oe-config-file>
+tisdk@9b297a000db9:~$ cd build  
+tisdk@9b297a000db9:~$ . conf/setenv
+
+# To build <target> image
+tisdk@9b297a000db9:~$ MACHINE=<machine> bitbake -k <target>
+
+# To build tisdk-default-image image for AM62x
+tisdk@9b297a000db9:~$ MACHINE=am62xx-evm bitbake -k tisdk-default-image
+
+```
+
+Refer [Build Options under Processor SDK Build Reference](https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/latest/exports/docs/linux/Overview_Building_the_SDK.html#build-options) for machine & target options.
+
+Your `target` wic image will be generated in deploy-ti directory. Refer [Create SD Card](https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/latest/exports/docs/linux/Overview/Processor_SDK_Linux_create_SD_card.html) to flash this image on the SD-Card.