Risk-Targeted-Ground-Motion-Calculator-Documentation.md

-# Sample input
+## Sample input
 
 Application input can be user-provided or drawn from the [USGS Hazard Curve Data files](http://earthquake.usgs.gov/hazards/products/). The following example incorporates the “Hazard Curve Data” file for “5Hz (0.2 Second)”; specifically the data for the coordinates (34.05, -118.25) in Los Angeles are used:
 
-Spectral Response Acceleration Values (corresponding to the x-axis on a hazard curve):
+### Spectral Response Acceleration Values (corresponding to the x-axis on a hazard curve):
 0.005, 0.0075, 0.0113, 0.0169, 0.0253, 0.038, 0.057, 0.0854, 0.128, 0.192, 0.288, 0.432, 0.649, 0.973, 1.46, 2.190, 3.28, 4.92, 7.38
 
-Annual Frequency of Exceedance Values (corresponding to the y-axis on a hazard curve):
+### Annual Frequency of Exceedance Values (corresponding to the y-axis on a hazard curve):
 0.5855, 0.5208, 0.4389, 0.3515, 0.2679, 0.1953, 0.1376, 0.09335, 0.06027, 0.03659, 0.02096, 0.01146, 0.005985, 0.002934, 0.001287, 0.0004781, 0.0001411, 0.00003023, 0.000003828
 
 
-# Sample output
+## Sample output
 
-Output summary (yellow box)
+### Output summary (yellow box)
 This section provides the risk-targeted ground motion (RTGM) corresponding to a 1% probability of collapse in 50 years. The uniform hazard ground motion (UHGM) used as a starting point for the calculations is provided, as is the Risk Coefficient (RC) representing the ratio of RTGM to UHGM for the site of interest.
 
 
 Five plots illustrating the step-by-step process of calculating the risk-targeted ground motion are briefly discussed below.
 
-Hazard Curve
+### Hazard Curve
 This is simply a graphical representation of the Spectral Response Acceleration Values (x-axis) and Annual Frequency of Exceedance Values (y-axis) provided by the user. For more information on these values, users are referred to the Documentation for the 2008 Update of the United States National Seismic Hazard Maps (embedded link: http://pubs.usgs.gov/of/2008/1128/).
 
-Fragility Curves
+### Fragility Curves
 These are generic fragility curves…
 
-Derivative of Fragility Curves 
+### Derivative of Fragility Curves 
 These are simply the derivatives of each respective fragility curve. Provided as a reference for the next step in the calculation process.
 
-Hazard Curve x Derivative of Fragility Curves
+### Hazard Curve x Derivative of Fragility Curves
 Combining the hazard curve for the site with each fragility curve produces a curve illustrating the annual collapse frequency density of a generic structure at the site of interest. Provided as a reference for the next step in the calculation process.
 
-Cumulative Integral of Hazard Curve x Derivative of Fragility Curves
+### Cumulative Integral of Hazard Curve x Derivative of Fragility Curves
 Integrating the Hazard Curve x Derivatives of Fragility Curves produces the cumulative 50-year collapse probability of a generic structure at the site of interest. 
 
 
-API Documentation
-This section describes… (then proceed with the currently provided documentation)
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-
-
-
-Risk Targeted Ground Motion - API Documentation
+## API Documentation
 
 This page describes the process for creating a request and also defines the terms used in the response output. Additionally some examples are provided to help get you started.
-Request API
+
+### Request API
 
 http://earthquake.usgs.gov/hazards/apps/rtgm_calculator/service/x0,x1,...xN/y0,y1,...yN[/callback]
 
@@ -54,7 +49,8 @@ callback
     Optional. If specified, the JSONP callback to call when the response is returned. This is useful for application developers. Note: If this parameter is specified, the response content-type header is changed from “application/json” to “text/javascript” 
 
 Note: All input hazard curve data must be adjusted with max-direction factors by the user before using the data in this application.
-Response API
+
+### Response API
 
 {
 	status: Response Code,
@@ -117,7 +113,7 @@ originalHCMax
     Number
     The largest input spectral response acceleration value. This is useful for determining if a resulting spectral acceleration value in the upsampled hazard curve is based on extrapolation. 
 
-Examples
+### Examples
 
     Example 1: JSON request, no callback is specified. Note the content-type header in the response.
     http://earthquake.usgs.gov/hazards/apps/rtgm_calculator/service/0.01,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1,1.1,1.2,1.4,1.7,2/0.5696,0.088335,0.02925,0.01229725,0.00564925,0.00275075,0.001385175,0.000733875,0.0003984225,0.0002205625,0.0001235975,6.881825E-5,3.82493775E-5,1.13329875E-5,1.34645E-6,6.4884E-8