feat: update doc reflect removal of s3

Author: Siddharth Yadav

README.md

@@ -1,22 +1,20 @@
 # JSON Dereference CLI
 
-*Very* simple CLI tool that wraps the excellent [json-schema-ref-parser](https://github.com/BigstickCarpet/json-schema-ref-parser) library.
+*Very* simple CLI tool that wraps the
+excellent [json-schema-ref-parser](https://github.com/BigstickCarpet/json-schema-ref-parser) library.
 
 ## Usage
 
 ```bash
 # Using npx:
-npx json-dereference-cli -s <schema> [-b <s3bucket>] [-i <spaces>] [-o <output>] [-t <type>]
+npx json-dereference-cli -s <schema> [-i <spaces>] [-o <output>] [-t <type>]
 
 # Installing globally:
 npm install -g json-dereference-cli
-json-dereference -s <schema> [-b <s3bucket>] [-i <spaces>] [-o <output>] [-t <type>]
+json-dereference -s <schema>  [-i <spaces>] [-o <output>] [-t <type>]
 ```
 
 *Note:* The input file can either be `json`, or `yaml` / `yml`.
 
-*Note:* The output file types are either `json` or `yaml` / `yml`. This is determined from the file extension for the output file path passed in or using `-t json|yaml` when writing to stdout.
-
-## Resolving s3 references
-
-This CLI tool will also attempt to resolve S3 references (`$ref: "s3://.."`) using the `aws-sdk`. Take a look [here](s3-resolver.js) to see the custom resolver code.
+*Note:* The output file types are either `json` or `yaml` / `yml`. This is determined from the file extension for the
+output file path passed in or using `-t json|yaml` when writing to stdout.