Add examples, fix typo

content/en/docs/01/_index.md

@@ -125,7 +125,23 @@ dagger call --mod github.com/shykes/daggerverse/hello@v0.3.0 hello --name=sun
 To pass a Boolean argument to a Dagger Function, simply add the corresponding flag:
 
 * To set the argument to true: `--foo=true`, or simply `--foo`
-* To set the argument to false: `--foo=false`
+* To set the argument to false: `--foo=false`, or just omit the argument as the default is usually false
+
+```bash
+# true
+# explicit
+dagger call --mod github.com/shykes/daggerverse/hello@v0.3.0 hello --shout=true
+# implicit
+dagger call --mod github.com/shykes/daggerverse/hello@v0.3.0 hello --shout
+```
+
+```bash
+# false
+# explicit
+dagger call --mod github.com/shykes/daggerverse/hello@v0.3.0 hello --shout=false
+# implicit
+dagger call --mod github.com/shykes/daggerverse/hello@v0.3.0 hello
+```
 
 
 #### Directory Arguments
@@ -135,6 +151,13 @@ You can also pass a Directory argument. To do so, add the corresponding flag, fo
 In **both** cases, the `dagger` CLI will convert it to an object referencing the contents of that filesystem path or Git repository location,
 and pass the resulting `Directory` object as argument to the Dagger Function.
 
+```bash
+# filesystem path
+dagger call --mod github.com/softwaredevelop/daggerverse/shellcheck@3872d4fb4e5b0e8a2844b2148ea00c076396a53b check --source=/usr/bin
+# Git repository
+dagger call --mod github.com/softwaredevelop/daggerverse/shellcheck@3872d4fb4e5b0e8a2844b2148ea00c076396a53b check --source=https://github.com/puzzle/action-owasp-dependecy-track-check
+```
+
 
 #### Container Arguments
 

content/en/docs/04/_index.md

@@ -73,7 +73,7 @@ But after what we learned previously, we will, of course, use the functions of t
 ### Extending our codebase
 
 The Trivy Module has a `container()` function, which expects [Container](https://docs.dagger.io/api/reference/#definition-Container) as argument.
-As our existing `frontend()` and `backend()` return [Service](https://docs.dagger.io/api/reference/#definition-Service)s, we need an additional functions.
+As our existing `frontend()` and `backend()` return a [Service](https://docs.dagger.io/api/reference/#definition-Service), we need an additional functions.
 
 Since the only difference in creating these containers is the path in which they are built, we will combine them into a single function: