Fixing a little markdown typo on TodoList Readme (#879)

* Fixed markdown typo

* keeping the same pattern

samples/TodoList/README.md

@@ -81,7 +81,7 @@ This aliasing technique is implemented primarily in the buildconfig.js file. Ref
 To incorporate this techinque into your project, copy the relevant sections of buildconfig.js, gulpfile.js, and webpack.config.ts.
 
 ## Local Web Server
-The other ReactXP samples allow you to run the resulting web app by simply opening the "index.html``` file in your browser. This sample shows a more advanced technique that uses a simple local web server running in node. This web server is not intended for development only, not for production hosting.
+The other ReactXP samples allow you to run the resulting web app by simply opening the ```index.html``` file in your browser. This sample shows a more advanced technique that uses a simple local web server running in node. This web server is not intended for development only, not for production hosting.
 
 To configure and run the local web server, refer to the instructions in docs/setup.
 
@@ -101,12 +101,12 @@ If a service must be started at app launch time, it can be started within the ap
 ## Custom Fonts
 This sample demonstrates how to include custom fonts within your project. It uses a platform-specific module called "fonts" to provide per-platform font selection.
 
-On the web, the custom fonts are referenced by "@font-face" CSS directives in "web\css\app.css". They are included directly within the various native projects (XCode, gradle, Visual Studio) for the native projects.
+On the web, the custom fonts are referenced by "@font-face" CSS directives in ```web\css\app.css```. They are included directly within the various native projects (XCode, gradle, Visual Studio) for the native projects.
 
 ## Static Images
 This sample demonstrates how to include static images within your project. It uses a platform-specific module called "images" to provide per-platform image selection. This is required because the RN Packager demands the use of static require paths within the code, whereas web builds require a relative URL.
 
-Refer to the "modules/images/" directory for details.
+Refer to the ```modules/images/``` directory for details.
 
 ## Navigation Contexts
 There are many ways to implement navigation in React apps. This sample demonstrates one such technique that allows the app to switch between "stack-based" navigation (which is most appropriate for small screen sizes) and "composite" navigation where multiple panels are visible side by side (most appropriate for larger screen sizes). The sample app is able to switch between these two modes as you resize your browser.