improve documentations

docs/configurations.md

@@ -76,4 +76,7 @@ summary: "Here we list all possible configurations and what they mean"
         - [usePrefix](#usePrefix) () <br/>
         <span style="color:grey">Standard prefix for all metrics</span>
 
+    - [S3Configs](s3_hoodie.html) (Hoodie S3 Configs) <br/>
+    <span style="color:grey">Configurations required for S3 and Hoodie co-operability.</span>
+
 {% include callout.html content="Hoodie is a young project. A lot of pluggable interfaces and configurations to support diverse workloads need to be created. Get involved [here](https://github.com/uber/hoodie)" type="info" %}

docs/s3_filesystem.md

@@ -10,6 +10,10 @@ Hoodie works with HDFS by default. There is an experimental work going on Hoodie
 
 ## S3 configs
 
+There are two configurations required for Hoodie-S3 compatibility:
+- Adding AWS Credentials for Hoodie
+- Adding required Jars to classpath
+
 Add the required configs in your core-site.xml from where Hoodie can fetch them. Replace the `fs.defaultFS` with your S3 bucket name and Hoodie should be able to read/write from the bucket. 
 
 ```
@@ -44,4 +48,8 @@ Add the required configs in your core-site.xml from where Hoodie can fetch them.
   </property>
 ```
 
+AWS hadoop libraries to add to your classpath -
+ - com.amazonaws:aws-java-sdk:1.10.34
+ - org.apache.hadoop:hadoop-aws:2.7.3
+