docs: README

add deno subprocess documentation

README.md

@@ -12,15 +12,39 @@ bundled with lcov. lcov can be installed with Homebrew on macOS.
 brew install lcov
 ```
 
-to use this script first copy the contents of coverage.sh to a project or this
-script can also added to a project via a command line
+### Deno
+
+Deno is capable of spawning a subprocess and supports url imports. As a result,
+a code coverage report can be generated via the command line. There is no need
+to install any dependencies, just open a command line where you would normally
+run `deno test` and use the following code.
+
+```
+deno run --allow-run --allow-read --allow-write https://raw.githubusercontent.com/theogainey/Deno-Test-Coverage/main/coverage.ts
+```
+
+or
+
+```
+deno run --allow-all https://raw.githubusercontent.com/theogainey/Deno-Test-Coverage/main/coverage.ts
+```
+
+Additionally pass `open` as an argument to open the coverage report
+
+```
+deno run --allow-all https://raw.githubusercontent.com/theogainey/Deno-Test-Coverage/main/coverage.ts open
+```
+
+### Bash
+
+To run this script with Bash first copy the contents of coverage.sh to a project
+or this script can also added to a project via a command line
 
 ```
 curl -sL https://raw.githubusercontent.com/theogainey/Deno-Test-Coverage/main/coverage.sh -o coverage.sh
 ```
 
-after adding the script to a project a test coverage report can
-generated with
+after adding the script to a project a test coverage report can generated with
 
 ```
 sh coverage.sh