Updated README correcting markdown errors.

README.md

@@ -1,30 +1,36 @@
 # JHU/APL pubgeo
 JHU/APL is committed to advancing the state of the art in geospatial computer vision by advocating for public data sets 
-and open source software. For more information on this and other efforts, please visit [JHU/APL](http://www.jhuapl.edu/pubgeo).
-##SHR3D
+and open source software. For more information on this and other efforts, please visit [JHU/APL](http://www.jhuapl.edu/pubgeo.html).
+
+## SHR3D
+
 Shareable High Resolution 3D Point Cloud Classification
 >SHR3D classifies a 3D point cloud to generate simple raster products, including a Digital Surface Model (DSM), Digital 
 Terrain Model (DTM), and a classification image labeling ground, buildings, and trees.
-###SHR3D Usage
+
+### SHR3D Usage
     ./shr3d <Input File(LAS|TIF)> DH=<Horizontal uncertainty(m)> DZ=<Vertical uncertainty(m)> AGL=<Min building height(m)> AREA=<Min building area(m^2)>
-####Example:
+
+#### Example:
     ./shr3d shr3dMe.las DH=0.5 DZ=0.5 AGL=2 AREA=50
 This will produce a multiple tif files as a result:
 * **Classification image**- 'Colored' by classification for each pixel: buildings, ground, and trees
 * **Building image**- Binary mask of all detected buildings
 * **DSM**- Digital surface model (reflective surface)
 * **DTM**- Digital terrain model (bare earth, or ground)
-##ALIGN3D
+
+## ALIGN3D
 Align 3D Point Cloud Registration Tool
 >ALIGN3D estimates and applies a transform to align 3D point clouds. This algorithm was developed 
 for use with airborne lidar, multiple view satellite imagery, and synthetic aperture radar 
 derived point clouds.
 
-###ALIGN3D Usage
+### ALIGN3D Usage
     ./align3d <Reference point cloud(LAS)> <Target point cloud(LAS)> maxdz=<Maximum local z difference(m)> gsd=<Ground sample distance(m)> maxt=<Maximum XY translation for search(m)>
-####Example:
+
+#### Example:
     ./align-3d reference.las target.las maxt=10.0 gsd=1.0
 This will produce multiple output files:
 * Aligned.las- A point cloud representation of the target, aligned to the reference
 * Aligned.tif- A DSM of the target, aligned to the reference
-* Offsets.txt- A list of the xyz offsets to translate the target to align with the reference 
+* Offsets.txt- A list of the xyz offsets to translate the target to align with the reference