Update schema docs

Signed-off-by: Natalia Luzuriaga <natalia.luzuriaga@cms.hhs.gov>

Author: natalialuzuriaga

docs/agency-index.md

@@ -2,6 +2,8 @@
 
 The SHARE IT Act requires federal agencies to publish metadata for their software projects. This metadata is compiled into an **agency-index.json** file, which serves as a centralized inventory of the agency's software portfolio.
 
+View the agency-index.json schema here: https://github.com/DSACMS/gov-codejson/tree/main/schemas/agency-index/schema-2.0.0.json
+
 To create an agency-index.json:
 1. Identify GitHub organizations and other platforms where source code is hosted
 2. Generate the agency-index.json using the tools below. Learn more about usage in [procedures.md](https://github.com/DSACMS/gov-codejson/blob/main/docs/procedures.md#generate-an-agency-indexjson-file-for-agencies)
@@ -11,4 +13,4 @@ To create an agency-index.json:
   - Agency's top level domain (TLD)
   - A GitHub repository
 
-Agency index files are found here: https://github.com/DSACMS/code-gov/tree/main/agency-indexes
+More examples of agency index files can be found here: https://github.com/DSACMS/code-gov/tree/main/agency-indexes