Fixing broken links in index page
diff --git a/docs/index.md b/docs/index.md
index c4d0c5d..6cbbdd3 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -11,9 +11,9 @@
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-<button type="button" style="color:#f2f2f2;text-align:center;font-weight:lighter;background-color:#2481b9;width:220px;border: 2px solid #2481b9;border-radius:4px"><a style="color:white" href="Airavata-Installation" target="_blank"><b>Download</b><br/><br/>Download and install Airavata middleware and reference gateway (PGA).<br/></br>Select the best option for you!</a></button>&nbsp; &nbsp; &nbsp;
-<button type="button" style="color:#f2f2f2;text-align:center;font-weight:lighter;background-color:#2481b9;width:220px;border: 2px solid #2481b9;border-radius:4px"><a style="color:white" href="Admin-Tutorials" target="_blank" ><b>Admin Quick Start</b><br/><br/>Tutorials for gateway admin users!</br>Collection of tutorials that will provide instructions for quick set-up.</a></button>&nbsp; &nbsp; &nbsp;
-<button type="button" style="color:#f2f2f2;text-align:center;font-weight:lighter;background-color:#2481b9;width:220px;border: 2px solid #2481b9;border-radius:4px"><a style="color:white" href="User-Tutorials" target="_blank" ><b>User Quick Start</b><br/><br/>Tutorials for gateway users!</br>Collection of tutorials way users. <br/>Help with job submission and management!.</a></button>&nbsp; &nbsp;
+<button type="button" style="color:#f2f2f2;text-align:center;font-weight:lighter;background-color:#2481b9;width:220px;border: 2px solid #2481b9;border-radius:4px"><a style="color:white" href="installation/airavata-installation" target="_blank"><b>Download</b><br/><br/>Download and install Airavata middleware and reference gateway (PGA).<br/></br>Select the best option for you!</a></button>&nbsp; &nbsp; &nbsp;
+<button type="button" style="color:#f2f2f2;text-align:center;font-weight:lighter;background-color:#2481b9;width:220px;border: 2px solid #2481b9;border-radius:4px"><a style="color:white" href="user-documentation/admin-tutorials" target="_blank" ><b>Admin Quick Start</b><br/><br/>Tutorials for gateway admin users!</br>Collection of tutorials that will provide instructions for quick set-up.</a></button>&nbsp; &nbsp; &nbsp;
+<button type="button" style="color:#f2f2f2;text-align:center;font-weight:lighter;background-color:#2481b9;width:220px;border: 2px solid #2481b9;border-radius:4px"><a style="color:white" href="user-documentation/user-tutorials" target="_blank" ><b>User Quick Start</b><br/><br/>Tutorials for gateway users!</br>Collection of tutorials way users. <br/>Help with job submission and management!.</a></button>&nbsp; &nbsp;
 
 <!--<button type="button" style="color:#f2f2f2;text-align:center;font-weight:lighter;background-color:#2481b9;width:220px;border: 2px solid #2481b9;border-radius:4px"><a style="color:white" href="http://airavata.readthedocs.io/en/latest/ target="_blank"><b>User Guide</b></br><br>In-detail documentation on how to install, configure and do upgrades for gateway admins.</br>Step by step guide for gateway users as well.</br></a></button>
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