adding README

README.md

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+# mongo-wrapper
+
+## Description
+
+This repository contains a node/TS wrapper which simplifies the process of communication with Mongo.
+
+## How do I Use It?
+
+Install a specific or the latest release in your `package.json` dependencies:
+
+```json
+"@quizizz/mongo": "github:quizizz/mongo-wrapper#v0.2.2"
+```
+
+Import and use in your code as follows:
+
+```js
+import Mongo from "@quizizz/mongo";
+
+const eventEmitter = new EventEmitter();
+const config = {...};
+
+const mongoClient = MongoFactoryAuto("mongo", eventEmitter, config);
+```
+
+## How do I contribute?
+
+We work based on releases. Steps:
+
+- Branch out from `main`
+  - Label the branch accordingly - `chore/...`, `feat/...`, `fix/...`
+- Make a PR to `main` once done & tested
+- Once approved and merged, create a new release from the `main` branch following the SEMVER approach to versioning