fix: gitignore, auxfiles, README.md

.gitignore

@@ -1,2 +1,2 @@
-*.crt
-*.key
+nginx-repo.crt
+nginx-repo.key

examples/01-access-token/README.md

@@ -1,12 +1,13 @@
 # NGINX OpenID Connect - Access Token
 
-This directory provides the examples of NGINX configuration, Dockerfile and OIDC codebase that contain additional access token features by refactoring the [nginx-openid-connect](https://github.com/nginxinc/nginx-openid-connect).
+This directory provides the examples of [NGINX configuration](./conf/conf.d), [Dockerfile](./Dockerfile) and [OIDC codebase](./conf/conf.d/oidc.js) that contain additional access token features by refactoring the [nginx-openid-connect](https://github.com/nginxinc/nginx-openid-connect).
 
 ## Prerequisites
 - [Configure your IdP](https://github.com/nginxinc/nginx-openid-connect/#configuring-your-idp).
 - Prepare your certificates and update the followings if you want to enable SSL.
   - [./auxfiles/mysample.crt](./auxfiles/mysample.crt)
   - [./auxfiles/mysample.key](./auxfiles/mysample.key)
+  - The files would be copied into your Docker container if you update them.
   - You can manually configure `pem` file in the [frontend.conf](./conf/conf.d/frontend.conf) if you want.
 - Update OIDC configuration in your NGINX Plus config files:
   - [./conf/conf.d/frontend.conf](./conf/conf.d/frontend.conf)

examples/01-access-token/auxfiles/mysample.crt

@@ -0,0 +1,23 @@
+-----BEGIN CERTIFICATE-----
+MIID1TCCAr0CFHakn3mFsbEeHjRrultRVwFamPn8MA0GCSqGSIb3DQEBCwUAMIGm
+MQswCQYDVQQGEwJVUzELMAkGA1UECAwCV0ExETAPBgNVBAcMCEtpcmtsYW5kMRYw
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+6XnxekqDY3DlR/UozHrazmKr7afxmgeE9Q==
+-----END CERTIFICATE-----

examples/01-access-token/auxfiles/mysample.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEogIBAAKCAQEAu+/fuiTlFLX3DhX4QkxqH6CLbskIGvu+Vg7mxp6hn06ruPiB
+4S7bvlvfBEL9+jJxbzdqffpOufGdBq2drvlFtydNb9S3BdGft2srw5fUm0MrYOMF
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+-----END RSA PRIVATE KEY-----