docs: fix typos (#115)

Author: narinluangrath

docs/cli/testing-the-app.md

@@ -104,7 +104,7 @@ The report uri is included in the test output.
 
 #### Example:
 
-The following will be included the the output of failed tests:
+The following will be included in the output of failed tests:
 
 ```
 ...

docs/introduction/config-file.md

@@ -4,7 +4,7 @@ sidebar_position: 2
 
 # Config File
 
-The config file - which unless specified in the cli should live in `./owl.config.json` - is used to describe how Owl should run your app and your tests. Below you can find all the options the can be specified.
+The config file - which unless specified in the cli should live in `./owl.config.json` - is used to describe how Owl should run your app and your tests. Below you can find all the options that can be specified.
 
 ### Options