Update content file.

Didier BARRET
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content.yml
@@ -331,7 +331,7 @@ home:
           to a set of destinations. Similarly, the tool allows to compute 
           the carbon footprint of a larger set of trips, corresponding to a 
           conference, a meeting and so on. For this, the city of departure 
-          for each participant to the conference has first to be provided. 
+          for each participant to the event has first to be provided. 
           If multiple destination cities are provided, the tool ranks those 
           cities according to the associated carbon footprint. 
@@ -342,7 +342,7 @@ home:
           Furthermore, it provides an estimate based on data from six 
           different methods, whose estimates can differ significantly. If 
           more than one method is selected by the user, the tool returns 
-          the mean of the estimates of all selected method.  
+          the mean of the estimates of all selected methods.  
       - title: How does the tool work?
         content: |
@@ -364,7 +364,8 @@ home:
         content: |
           The tool incorporates six different methods, among the most 
           widely used, and for which the methodology used is 
-          documented. Providing more than one method enables to get 
+          documented (see additional resources later). 
+          Providing more than one method enables to get 
           a mean value, while illustrating the significant differences in 
           their estimates. In alphabetic order, the data considered are 
           from ADEME: the French Environment & Energy Management 
@@ -437,7 +438,7 @@ home:
       - title: Accounting for train emission
         content: |
-          The minimum distance for flying is an input to be provided by
+          The minimum distance for flying is an input to be selected by
           the user (it is set to 300 km by default). Below the minimum 
           distance for flying, it is assumed that train is used. The tool 
           then computes the travel footprint associated with train. The 
@@ -473,8 +474,10 @@ home:
           or an estimate for a conference, meeting and so on. In the 
           former case, the “origin” city is unique and the “destination” 
           cities may be multiple. The tool returns the carbon dioxide 
-          equivalent emission for each city of destination. 
-          In the later case, the “origin” cities are multiple 
+          equivalent emission for each city of destination. The tool can thus
+          be run also for an organization interested to know about its travel 
+          footprint, in which case the "origin" city is the city from which
+          employees travel. In the later case, the “origin” cities are multiple 
           (i.e. the cities from which the participants to the conference 
           depart from), and the “destination” city may be a single host city 
           or multiple host cities if the user wants to compare their 
@@ -482,12 +485,13 @@ home:
           the carbon dioxide equivalent for each city of origin. If multiple 
           destinations are provided the tool returns the carbon dioxide 
           equivalent emission summed over all cities of 
-          origin and for each city of destination. The cumulative distance to 
-          each city of destination is also provided. 
+          origin and for each city of destination. The cumulative round trip 
+          distance to each city of destination is also provided. 
           The result pages provides a summary plot which can be 
-          downloaded, as well as a csv and raw yaml file. The csv file 
-          lists the name of the city as in the form, the address to which it 
+          downloaded, as well as a csv and raw yaml file, which can be used for
+          further processing. The csv file  lists the name of the 
+          city as in the form, the address to which it 
           was geolocated, the carbon dioxide emission (in kg), the 
           distance travelled, the number of trips possible by train (i.e. 
           when the distance is less than the minimum flying distance, 
@@ -528,7 +532,9 @@ home:
       - title: Reference
         content: |
-          Results from the tool may reference to Barret (2019, in preparation). 
+          Results from the tool may reference to Barret (2019, The travel 
+          footprint associated with the development of the Athena 
+          X-ray Integral Field Unit, in preparation). 
       - title: Original motivation
         content: |
@@ -551,8 +557,8 @@ home:
           further improved to easily compute the travel footprint associated 
           with individual traveling or with the organization of events, involving
           a large number of travels.  Finally, by comparing different, 
-          widely used methods, providing so different estimates, I would 
-          expect to raise awareness within the scientific community 
+          widely used methods, providing so different estimates, the tool is
+          expected to raise awareness within the scientific community 
           (and hopefully the authorities and medias) 
           about the lack of regulations or framework on the critical 
           matter of estimating aircraft emissions.
@@ -560,7 +566,7 @@ home:
       - title: Concluding note
         content: |
           As a personal note, I would like to stress that, as a scientist, I 
-          find it worrying or even shocking that there are no standards 
+          find it very worrying that there are no standards 
           for computing the flight emissions, while we know that flight 
           travels, releasing carbon dioxide at high altitudes, contribute to 
           global warming. To take an example, the International Civil 
@@ -578,7 +584,7 @@ home:
           to be between 2 and 4. Why ICAO is using 1? This is just an 
           example, which clearly show the urgent need to agree on a 
           common methodology accepted by all parties in computing 
-          flight emission. May be this tool will help to raise 
+          flight emission. May this tool help to raise 
           awareness on this issue. 
       - title: Additional resources