add text and graphics to glycoshield

webapp-landingpage/glycodensity.md

@@ -3,6 +3,26 @@ layout: page
 title: GlycoDENSITY
 ---
 
+# Welcome to GlycoDENSITY!
+
+GlycoDENSITY is an open-source program that refines GlycoSHIELD predictions using experimental (volumetric) data, such as
+cryoEM, cryoET maps, or X-ray electron density maps. GlycoDENSITY sorts glycan conformers grafted with GlycoSHIELD according to
+their fit to the underlying experimental data.
+
+<p>
+<img src="glycodensity-large-logo.png" alt="GlycoDENSITY">
+<em>GlycoSHIELD ensemble refinement. Here we used SARS-CoV-2 Spike protein in its post-fusion state (red). Associated map contains
+low resolution information about glycans (e.g. marked in magenta box), which is only allowing to trace first monosaccharides of
+a glycan (first image in the bottom row, density is shown as outline, glycan as sticks). The remaining low resolution density
+can be used to refine GlycoSHIELD ensemble. Glycans are first grafted with GlycoSHIELD and a synthetic density map is generated
+to visualise span of the glycan mushroom. Next, GlycoDENSITY is used to select a small number of best-fit conformers (green,
+blue, brown, red). Finally, we can generate a synthetic density map based on these conformers and see how well it represents the
+experimental density.</em>
+</p>
+
+## Get GlycoDENSITY 
+
 GlycoDENSITY is released under a specific license and is available for
 [download here](https://dioscuri-biophysics.pages.mpcdf.de/glycodensity/){:target="_blank"}.
+By downloading the code you acknowledge having read and accepted the terms of the license.
 

webapp-landingpage/index.md

@@ -17,7 +17,7 @@ The source code is freely available under the GPL3 license at
 To launch the GlycoSHIELD web application, please click the image below.
 
 <a href="https://notebooks.mpcdf.mpg.de/binder/v2/git/https%3A%2F%2Fgitlab.mpcdf.mpg.de%2Fdioscuri-biophysics%2Fglycoshield-md.git/webapp_online?urlpath=streamlit" target="_blank">
-    <img src="GSlogo-large.png" style="border:2px solid #3792cb;" alt="GS">
+<img src="GSlogo-large.png" style="border:2px solid #3792cb;" alt="GS">
 </a>
 
 ### Usage hints