vh-1277: Fix README and install nats.c version (#586)

Note: newest version nats 3.8.0 breaks docker build

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# PR Details
## Description
Fix the Docker build by setting nats.c version to install. Also fix the
readme. CHanges already merged to develop under
#584
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## Related Issue
VH-1277
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## Motivation and Context
Fix CI processes and README
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## How Has This Been Tested?
CI
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## Types of changes

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- [x] Defect fix (non-breaking change that fixes an issue)
- [ ] New feature (non-breaking change that adds functionality)
- [ ] Breaking change (fix or feature that cause existing functionality
to change)

## Checklist:

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- [ ] I have added any new packages to the sonar-scanner.properties file
- [ ] My change requires a change to the documentation.
- [ ] I have updated the documentation accordingly.
- [x] I have read the **CONTRIBUTING** document.
[V2XHUB Contributing
Guide](https://github.com/usdot-fhwa-OPS/V2X-Hub/blob/develop/Contributing.md)
- [ ] I have added tests to cover my changes.
- [ ] All new and existing tests passed.

README.md

@@ -1,7 +1,11 @@
-| CicleCI Build Status | Sonar Code Quality |
+## Develop CI/CD Processes
+| V2X-Hub Docker Image Builds (x86 or AMD) | V2X-Hub Docker Image Builds (ARM) |  Sonar Code Quality |
+|----------------------|---------------------|---------------------|
+ [![Build Workflows](https://github.com/usdot-fhwa-OPS/V2X-Hub/actions/workflows/build.yml/badge.svg?branch=develop)](https://github.com/usdot-fhwa-OPS/V2X-Hub/actions/workflows/build.yml)|[![CircleCI](https://dl.circleci.com/status-badge/img/gh/usdot-fhwa-OPS/V2X-Hub/tree/develop.svg?style=svg)](https://dl.circleci.com/status-badge/redirect/gh/usdot-fhwa-OPS/V2X-Hub/tree/develop)| [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=usdot-fhwa-ops_V2X-Hub&metric=alert_status)](https://sonarcloud.io/dashboard?id=usdot-fhwa-ops_V2X-Hub) |
+ ## Release CI/CD Processes
+| V2X-Hub Docker Image Builds (x86 or AMD) | V2X-Hub Docker Image Builds (ARM) | 
 |----------------------|---------------------|
-[![CircleCI](https://circleci.com/gh/usdot-fhwa-OPS/V2X-Hub.svg?style=svg)](https://circleci.com/gh/usdot-fhwa-OPS/V2X-Hub) | [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=usdot-fhwa-ops_V2X-Hub&metric=alert_status)](https://sonarcloud.io/dashboard?id=usdot-fhwa-ops_V2X-Hub) |
-
+ [![Build Workflows](https://github.com/usdot-fhwa-OPS/V2X-Hub/actions/workflows/build.yml/badge.svg?branch=master)](https://github.com/usdot-fhwa-OPS/V2X-Hub/actions/workflows/build.yml)|[![CircleCI](https://dl.circleci.com/status-badge/img/gh/usdot-fhwa-OPS/V2X-Hub/tree/master.svg?style=svg)](https://dl.circleci.com/status-badge/redirect/gh/usdot-fhwa-OPS/V2X-Hub/tree/master)|
 # Overview
 In order to bring infrastructure components into the Connected Vehicle architecture, you need software that will facilitate the exchange of data in a format that can be understood by both vehicles and infrastructure devices The V2X Hub, takes in data from vehicles via Basic Safety Messages (BSM) in a Society of Automotive Engineers (SAE) standard format and translates the data to a National Transportation Communications for ITS Protocol (NTCIP) that infrastructure components can understand.  And vice versa.   It translates Signal Phase and Timing (SPaT) data from NTCIP to SAE and sends it to the Roadside Unit (RSU) for broadcast to mobile devices, including vehicles. 
 

ext/build.sh

@@ -65,7 +65,7 @@ pushd /tmp
 if [ -d "nats.c" ]; then
     rm -r nats.c
 fi
-git clone https://github.com/nats-io/nats.c
+git clone https://github.com/nats-io/nats.c --branch v3.7.0
 cd nats.c
 cmake . -DNATS_BUILD_NO_SPIN=ON
 make -j${numCPU}