Fix some typos in the README.md

Signed-off-by: Remy Suen <remy.suen@gmail.com>

README.md

@@ -12,12 +12,12 @@ Schemas can be provided by configuration. See [here](https://github.com/Microsof
 for the API that the JSON plugin offers to configure the JSON language support.
 
 Internally the JSON plugin uses the [vscode-json-languageservice](https://github.com/Microsoft/vscode-json-languageservice)
-node module, providing the implementation of the functionally listed above. The same module is also used
+node module, providing the implementation of the features listed above. The same module is also used
 in [Visual Studio Code](https://github.com/Microsoft/vscode) to power the JSON editing experience.
 
 ## Issues
 
-Please file issues concering `monaco-json` in the [`monaco-editor` repository](https://github.com/Microsoft/monaco-editor/issues).
+Please file issues concerning `monaco-json` in the [`monaco-editor` repository](https://github.com/Microsoft/monaco-editor/issues).
 
 ## Installing