docs(chore): add sonar and synk badges (#193)

fix vulnerabilities

GH-192

## Description

add sonar and synk badges

Fixes #192 

## Type of change

Please delete options that are not relevant.

- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] Intermediate change (work in progress)
## Checklist:

- [ ] Performed a self-review of my own code
- [ ] npm test passes on your machine
- [ ] New tests added or existing tests modified to cover all changes
- [ ] Code conforms with the style guide
- [ ] API Documentation in code was updated

Author: yeshamavani

docs/README.md

@@ -6,6 +6,12 @@
 <a href="https://www.npmjs.com/package/loopback4-soft-delete">
 <img src="https://img.shields.io/npm/v/loopback4-soft-delete.svg" alt="npm version" />
 </a>
+<a href="https://sonarcloud.io/summary/new_code?id=sourcefuse_loopback4-soft-delete" target="_blank">
+<img alt="Sonar Quality Gate" src="https://img.shields.io/sonar/quality_gate/sourcefuse_loopback4-soft-delete?server=https%3A%2F%2Fsonarcloud.io">
+</a>
+<a href="https://app.snyk.io/org/ashishkaushik/reporting?context[page]=issues-detail&project_target=%255B%2522sourcefuse%252Floopback4-soft-delete%2522%255D&project_origin=%255B%2522github%2522%255D&issue_status=%255B%2522Open%2522%255D&issue_by=Severity&table_issues_detail_cols=SCORE%257CCVE%257CCWE%257CPROJECT%257CEXPLOIT%2520MATURITY%257CAUTO%2520FIXABLE%257CINTRODUCED%257CSNYK%2520PRODUCT&v=1">
+<img alt="Synk Status" src="https://img.shields.io/badge/SYNK_SECURITY-MONITORED-GREEN">
+</a>
 <a href="https://github.com/sourcefuse/loopback4-soft-delete/graphs/contributors" target="_blank">
 <img alt="GitHub contributors" src="https://img.shields.io/github/contributors/sourcefuse/loopback4-soft-delete">
 </a>
@@ -20,7 +26,6 @@
 </a>
 </p>
 
-
 ## Install
 
 ```sh