Update README.md

In preparation of making the project open source

Author: mbaluda

README.md

@@ -1,5 +1,48 @@
-# Overview
-[CodeQL](https://codeql.github.com/) models and queries for the SAP frameworks:
+# CodeQL: SAP Javascript frameworks
+This repository contains [CodeQL](https://codeql.github.com/) models and queries for SAP Javascript frameworks:
 - [CAP](javascript/frameworks/cap) (https://cap.cloud.sap/)
 - [UI5](javascript/frameworks/ui5) (https://sapui5.hana.ondemand.com/)
-- [XSJS](javascript/frameworks/xsjs) (https://www.npmjs.com/package/@sap/async-xsjs)
+- [XSJS](javascript/frameworks/xsjs) (https://www.npmjs.com/package/@sap/async-xsjs)
+
+### Published CodeQl packs
+- [advanced-security/javascript-sap-cap-queries](https://github.com/advanced-security/codeql-sap-js/pkgs/container/javascript-sap-cap-queries)
+- [advanced-security/javascript-sap-ui5-queries](https://github.com/advanced-security/codeql-sap-js/pkgs/container/javascript-sap-ui5-queries)
+- [advanced-security/javascript-sap-async-xsjs-queries](https://github.com/advanced-security/codeql-sap-async-xsjs/pkgs/container/javascript-sap-async-xsjs-queries)
+
+## Usage 
+
+### Building the CodeQL database
+
+1. Include and index XML, JSON and CDS files by setting the necessary environment variables:
+```
+export LGTM_INDEX_XML_MODE='ALL'
+export LGTM_INDEX_FILETYPES=".json:JSON\n.cds:JSON"
+```
+2. Compile all the CDS files using the SAP cds toolkit
+```
+npm install -g @sap/cds-dk
+for cds_file in $(find . -type f \( -iname '*.cds' \) -print)
+  do
+    cds compile $cds_file \
+      -2 json \
+      -o "$cds_file.json" \
+      --locations
+  done
+```
+3. Build the database [as usual](https://docs.github.com/en/code-security/codeql-cli/codeql-cli-manual/database-create)
+```
+codeql database create <DB_NAME> --language=javascript
+```
+
+### Analyzing the database [with Code Scanning](https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/customizing-your-advanced-setup-for-code-scanning#using-query-packs)
+[Example](https://github.com/advanced-security/codeql-sap-js/blob/main/.github/codeql/codeql-config.yaml#L3-L7).
+ 
+### Analyzing the database with [with the CodeQL CLI](https://docs.github.com/en/code-security/codeql-cli/using-the-advanced-functionality-of-the-codeql-cli/publishing-and-using-codeql-packs#using-a-codeql-pack-to-analyze-a-codeql-database).
+Example:
+```
+codeql database analyze <DB_NAME> advanced-security/javascript-sap-ui5-queries --download --format=sarif-latest --output=<OUTPUT_FILE>
+```
+
+## License
+
+The code in this repository is licensed under the [MIT License](LICENSE) by [GitHub](https://github.com).