feat: added support for passing env.json file to test cmd (#2373)

packages/hoppscotch-cli/README.md

@@ -24,13 +24,26 @@ hopp [options or commands] arguments
 
    - Displays the help text
 
-3. #### **`hopp test <file_path>`**
+3. #### **`hopp test [options] <file_path>`**
    - Interactive CLI to accept Hoppscotch collection JSON path
    - Parses the collection JSON and executes each requests
    - Executes pre-request script.
    - Outputs the response of each request.
    - Executes and outputs test-script response.
 
+    #### Options:
+    ##### `-e <file_path>` / `--env <file_path>`
+    - Accepts path to env.json with contents in below format:   
+        ```json
+        {
+            "ENV1":"value1",
+            "ENV2":"value2"
+        }
+        ```
+    - You can now access those variables using `pw.env.get('<var_name>')`
+			
+			Taking the above example, `pw.env.get("ENV1")` will return `"value1"`
+
 ## Install
 
 Install [@hoppscotch/cli](https://www.npmjs.com/package/@hoppscotch/cli) from npm by running: