Add clear examples of what tools to use locally to display lcov (#101)

<!-- Reference any GitHub issues resolved by this PR -->

Closes #94

## Introduced changes

<!-- A brief description of the changes -->

- Used locally now features examples to better introduce users

## Checklist

<!-- Make sure all of these are complete -->

- [x] Linked relevant issue
- [x] Updated relevant documentation
- [ ] Added relevant tests
- [ ] Performed self-review of the code
- [ ] Added changes to `CHANGELOG.md`

README.md

@@ -35,30 +35,44 @@ curl -L https://raw.githubusercontent.com/software-mansion/cairo-coverage/main/s
 
 ## Usage
 
-### Generate coverage report
+### Generate Coverage Report
 
-To generate the report, run `cairo-coverage` with one or more `<PATH_TO_TRACE_DATA>` arguments, which specify the paths
-to the json files containing the trace data to be used for generating the coverage report.
-Optionally, you can provide the path to the output file using `--output-path <OUTPUT_PATH>`. If not specified, the
-output file will default to being saved as `coverage.lcov`.
+To generate a coverage report, run the `cairo-coverage` command with one or more `<PATH_TO_TRACE_DATA>` arguments. These
+arguments specify the paths to the JSON files containing the trace data to be used for generating the coverage report.
 
-### Output format
+```shell
+cairo-coverage path/to/trace/1.json path/to/trace/2.json path/to/trace/3.json
+```
+
+Optionally, you can specify an output file path using the `--output-path <OUTPUT_PATH>` option. If not provided, the
+output file will default to `coverage.lcov`.
 
 The generated output file is in the `lcov` format. For your convenience, you can find an explanation along with a simple
 example of the `lcov` format [here](./lcov.md).
 
-#### Example
+#### Using `snforge`:
+
+Please refer to
+the [Starknet Foundry documentation](https://foundry-rs.github.io/starknet-foundry/testing/coverage.html) for additional
+information on using `cairo-coverage` with `snforge`.
+
+### Viewing Report
+
+Before you can view the coverage report as an HTML file, **the report must first be generated**. Please refer to
+the [Generate Coverage Report](#generate-coverage-report) section above for detailed instructions.
+
+Once you have generated the `coverage.lcov` file, a summary report with aggregated data can be produced by one of the
+many tools that accept the `lcov` format.
+
+In this example, we will use the `genhtml` tool from
+the [lcov package](https://github.com/linux-test-project/lcov/tree/master) to generate an HTML report. If you don’t
+already have `genhtml` installed, you can find installation instructions [here](https://command-not-found.com/genhtml).
 
 ```shell
-cairo-coverage path/to/trace/1.json path/to/trace/2.json path/to/trace/3.json
+genhtml -o coverage_report coverage.lcov
 ```
 
-### Coverage statistics
-
-Various tools exist that can produce coverage statistics based on an lcov file. One of the most well-known among these
-is [genhtml](https://github.com/linux-test-project/lcov/blob/master/bin/genhtml),
-a tool that generates an html summary report using the coverage data in an lcov file, `genhtml` is part of
-the [lcov package](https://github.com/linux-test-project/lcov/tree/master).
+You can now open the `index.html` file in the `coverage_report` directory to see the generated coverage report.
 
 ## Usage in GitHub actions