Update README.md

Author: kkumar23

README.md

@@ -58,6 +58,8 @@ For details on the usage of RAM, FIFO and Multiplier blocks, refer to the follow
 ## 2) Compile from source code and run example
 
 This release package contains the following GitHub repositories that are compiled to create this package:
+Note: Refer the repositories read.md pages for the prerequisites to build.
+
 You may use the following command to get the source, compile and install it:
 ```bash
 #Checkout *yosys* repository (https://github.com/QuickLogic-Corp/yosys.git), branch: **quicklogic-rebased**. 
@@ -96,54 +98,13 @@ make bin2seven-ql-chandalar_fasm
 ```
 ## 3) Run SymbiFlow in a container
 
-Containers provide isolated environments, similar to VMs, but lighter weight, and with performance closer to the native machine they run on.  Containers start quickly from an efficient layered image which provides an identical environment each time the container starts.  This solves the "it worked on my machine" issues that often plague development due to differences between versions of the tools or libraries on different machines.  Used properly, they are ideal for building software as part of a continuous integration environment, or deploying software as part of a continuous deployment system (CI/CD.)  Today, Docker is the defacto container ecosystem, which means there are lots of resources for learning Docker, and lots of people familiar with it.  The Dockerfile used to build a container image can be quite simple, and therefore it also provides a form of executable documentation on what is required to build and/or install a piece of software.  A great place to start is the Docker website, which provides links to tutorials and documentation:
+Containers provide isolated environments, similar to VMs, but lighter weight, and with performance closer to the native machine they run on.  Containers start quickly from an efficient layered image which provides an identical environment each time the container starts. A great place to start is the Docker website, which provides links to tutorials and documentation:
 
 https://www.docker.com/why-docker
 
 This project uses containers to build Symbiflow automatically whenever a change is pushed to Quicklogic/quicklogic-fpga-toolchain.  With each successful build, a container image is pushed as a github package, and may be pulled or run directly by a container runtime such as Docker.  Such images are useful for developing continuous integration of FPGA projects.  The act of building and testing them automatically through github actions also provides assurances that what is checked into the github source repositories can be built and executed.  Below are some of the options for using containers to run or build SymbiFlow for Quicklogic development.
 
-### Option A) Use a container image that is built automatically by a github action workflow
-
-See the 'packages' links for the Docker command to pull a Symbiflow container image, or use it as the basis of a new container. 
-
-You can run bash interactively inside of a prebuilt SymbiFlow container using a docker command like this:
-```
-docker run -it docker.pkg.github.com/quicklogic-corp/quicklogic-fpga-toolchain/symbiflow-ql-src:latest bash
-```
-
-From your bash session in the container, try:
-```
-#Run any test case in the current terminal window. For example, follow these steps to run a test case:
-cd /symbiflow-arch-defs/build/quicklogic/pp3/tests/quicklogic_testsuite/bin2seven
-make bin2seven-ql-chandalar_fasm
-
-#Or try:
-cd /symbiflow-arch-defs/build/quicklogic/pp3/tests
-make all_quick_tests
-```
-
-### Option B) Build a container image locally from Dockerfile
-
-The Dockerfile in this repo builds SymbiFlow from source.  You can create and tag a local image with a Docker command like:
-```
-docker build . -t symbiflow-ql-slim-buster
-```
-Then you can run the container interactively with a docker command like:
-```
-docker run -it symbiflow-ql-slim-buster bash
-```
-From your bash session in the container, try:
-```
-#Run any test case in the current terminal window. For example, follow these steps to run a test case:
-cd /symbiflow-arch-defs/build/quicklogic/pp3/tests/quicklogic_testsuite/bin2seven
-make bin2seven-ql-chandalar_fasm
-
-#Or try:
-cd /symbiflow-arch-defs/build/quicklogic/pp3/tests
-make all_quick_tests
-```
-
-### Option C) Build a container image locally from Dockerfile.use-installer
+### Option A) Build a container image locally from Dockerfile.use-installer
 
 The Dockerfile.use-installer in this repo builds a SymbiFlow container from a released installer.  
 You can build and tag the symbiflow-ql container with:
@@ -188,6 +149,47 @@ xhost -
 ```
 
 
+### Option B) Build a container image locally from Dockerfile
+
+The Dockerfile in this repo builds SymbiFlow from source.  You can create and tag a local image with a Docker command like:
+```
+docker build . -t symbiflow-ql-slim-buster
+```
+Then you can run the container interactively with a docker command like:
+```
+docker run -it symbiflow-ql-slim-buster bash
+```
+From your bash session in the container, try:
+```
+#Run any test case in the current terminal window. For example, follow these steps to run a test case:
+cd /symbiflow-arch-defs/build/quicklogic/pp3/tests/quicklogic_testsuite/bin2seven
+make bin2seven-ql-chandalar_fasm
+
+#Or try:
+cd /symbiflow-arch-defs/build/quicklogic/pp3/tests
+make all_quick_tests
+```
+
+### Option C) Use a container image that is built automatically by a github action workflow
+
+See the 'packages' links for the Docker command to pull a Symbiflow container image, or use it as the basis of a new container. 
+
+You can run bash interactively inside of a prebuilt SymbiFlow container using a docker command like this:
+```
+docker run -it docker.pkg.github.com/quicklogic-corp/quicklogic-fpga-toolchain/symbiflow-ql-src:latest bash
+```
+
+From your bash session in the container, try:
+```
+#Run any test case in the current terminal window. For example, follow these steps to run a test case:
+cd /symbiflow-arch-defs/build/quicklogic/pp3/tests/quicklogic_testsuite/bin2seven
+make bin2seven-ql-chandalar_fasm
+
+#Or try:
+cd /symbiflow-arch-defs/build/quicklogic/pp3/tests
+make all_quick_tests
+```
+
 
 ## Hardware features that are not supported in this release
 - IO registers: Usage of IO registers available in the IO block (Hardware)