resources: Fixed some errors and added some extra documentation

_pages/documentation/gem5-stdlib/7-using-local-data-sources.md

@@ -103,17 +103,17 @@ resource = obtain_resource("id", clients=["data-source-json-1"])
 
 Local resources, in the context of gem5, pertain to resources that users possess and wish to integrate into gem5 but aren't pre-existing in the gem5 resources database.
 
-For users, This offers the flexibility to employ their own resources seamlessly within gem5, bypassing the need to create dedicated resource objects like `BinaryResource`. Instead, they can directly utilize these local resources through `obtain_resource`, streamlining the integration process.
+For users, This offers the flexibility to employ their own resources seamlessly within gem5, bypassing the need to create dedicated resource objects using `BinaryResource(local_path=/path/to/binary)`. Instead, they can directly utilize these local resources through `obtain_resource()`, streamlining the integration process.
 
 ### Using Custom Resource Configuration and Local Resources
 
 In this example, we will walk through how to set up your custom configuration and utilize your own local resources. For this illustration, we'll employ a JSON file as our resource data source.
 
 #### Creating a Custom Resource Data Source
 
-Let's begin by creating a local JSON object for a resource. This is a bare bones resource that will serve as an example that local resources can be used with obtain resources.
+Let's begin by creating a local resource. This is a bare bones resource that will serve as an example. To use local resources with `obtain_resource()`, our bare bones resource need to have a binary file. Here we use an empty binary called `fake-binary`. 
 
-To act as this bare bones resource has a source file let us create a file named `fake-binary`. This is just an empty file.
+**Note**: Make sure that Gem5 binary and `fake-binary` have same ISA target (RISCV here).
 
 Next, let's create the JSON data source. I'll name the file `my-resources.json`. The contents should look like this:
 
@@ -144,7 +144,7 @@ Next, let's create the JSON data source. I'll name the file `my-resources.json`.
 ]
 ```
 
-The JSON object of a resource should adhere to the [gem5 resources schema](https://resources.gem5.org/gem5-resources-schema.json).
+The JSON file of a resource should adhere to the [gem5 resources schema](https://resources.gem5.org/gem5-resources-schema.json).
 
 **Note**: While the `url` field can be a link, in this case, I'm using a local file.
 
@@ -166,16 +166,21 @@ Create a file named `gem5-config.json` with the following content:
 
 #### Running gem5 with a Local Data Source
 
-First, build gem5 with RISC-V:
+First, build gem5 with RISCV:
 
 ```bash
 scons build/RISCV/gem5.opt -j`nproc`
 ```
 
-Next, run the `local-resource-example.py` file using our local `riscv-hello` resource:
+Next, run the `local-resource-example.py` file using our local `test-binary` resource:
 
+Using environment variable
 ```bash
-GEM5_CONFIG=path/to/gem5-config.json ./build/RISCV/gem5.opt configs/example/gem5_library/local-resource-example.py --resource test-binary
+GEM5_RESOURCE_JSON_APPEND=path/to/my-resources.json ./build/RISCV/gem5.opt configs/example/gem5_library/local-resource-example.py --resource test-binary
 ```
+or you can overwrite the `gem5_default_config` with our own custom config:
 
+```bash
+GEM5_CONFIG=path/to/gem5-config.json ./build/RISCV/gem5.opt configs/example/gem5_library/local-resource-example.py --resource test-binary
+```
 This command will execute the `local-resource-example.py` script using our locally downloaded resource. This script just calls the obtain_resource function and prints the local path of the resource. This script indicates that local resources function similarly as resources on the gem5 resources database.