Update README.md

Author: spencerng

README.md

@@ -23,9 +23,9 @@ Here is an example of retrieving an array of teams in the FIRST Mid-Atlantic dis
 
 A list of request methods for each request object can be found [here](http://spencerng.github.io/blue-alliance-api-java-library/com/thebluealliance/api/v3/requests/package-summary.html).
 
-### Advance Usage
+### Advanced Usage
 
-If you want to utilize the `If-Modified-Since` and `Last-Modified` headers, you will need to make a direct URL request with the [`getDataTBA(String urlDirectory)` method](http://spencerng.github.io/blue-alliance-api-java-library/com/thebluealliance/api/v3/requests/DataRequest.html#getDataTBA-java.lang.String-java.lang.String-) in the [`DataRequest` class](http://spencerng.github.io/blue-alliance-api-java-library/com/thebluealliance/api/v3/requests/DataRequest.html). This will return an [`APIResponse`](http://spencerng.github.io/blue-alliance-api-java-library/com/thebluealliance/api/v3/requests/APIResponse.html) object with JSON data, the HTTP response code, and the `Last-Modified` header. 
+If you want to utilize the `If-Modified-Since` and `Last-Modified` headers, you will need to make a direct URL request with the [`getDataTBA(String urlDirectory, String ifModifiedSince)` method](http://spencerng.github.io/blue-alliance-api-java-library/com/thebluealliance/api/v3/requests/DataRequest.html#getDataTBA-java.lang.String-java.lang.String-) in the [`DataRequest` class](http://spencerng.github.io/blue-alliance-api-java-library/com/thebluealliance/api/v3/requests/DataRequest.html). This will return an [`APIResponse`](http://spencerng.github.io/blue-alliance-api-java-library/com/thebluealliance/api/v3/requests/APIResponse.html) object with JSON data, the HTTP response code, and the `Last-Modified` header. 
 
 The JSON data will need to be deserialized into an object model with a method in the [`Deserializer` class](http://spencerng.github.io/blue-alliance-api-java-library/com/thebluealliance/api/v3/Deserializer.html) before being used.
 
@@ -48,6 +48,19 @@ Here is an example of continuously fetching the `Match` objects for the 2017 Mou
 
 A list of object model classes and their getter methods for instance variables can be found [here](http://spencerng.github.io/blue-alliance-api-java-library/com/thebluealliance/api/v3/models/package-summary.html)
 
+## Dependencies
+
+You will need [Gson](https://github.com/google/gson) to use the released compiled TBA API JAR file in your project. Gson can be installed with [Maven](https://maven-badges.herokuapp.com/maven-central/com.google.code.gson/gson), via a [JAR file](http://repo1.maven.org/maven2/com/google/code/gson/gson/2.8.1/), or with Gradle if you include the following in your `build.gradle`
+
+    dependencies {
+    	compile 'com.google.code.gson:gson:2.2.4'
+    }
+
+Note that you will need Gradle to compile this repository's source code if you do not get Gson.
+
+## Examples
+
+
 ## Contact
 
 Feel free to contact me at sng1488@gmail.com or create a pull request if you have any questions, fixes, or suggestions.