Update README.md

README.md

@@ -6,6 +6,6 @@ Approach:
 2. Download the databases on mining hardware (Randi_TableS1.csv) and CO2e emissions of electricity generation in countries doing mining in 2017 (Katie_TableS2.csv).
 3. Run code (05 Carbon Bitcoin 2017.r), which will use the databases above to estimate carbon emissions of Bitcoin mining in 2017.
 
-For Bitcoin emission projections, we used three alternative scenarios of how broadly used technologies been incorporated by society (raw data in Code09_Threescenarios_FitsTechonologyAdoption.csv), and calculated emissions should Bitcoin usage follow any of such pathways. 
+For Bitcoin emission projections, we used three alternative scenarios of how broadly used technologies have been incorporated by society (raw data in Code09_Threescenarios_FitsTechonologyAdoption.csv), and calculated emissions should Bitcoin usage follow any of such pathways. 
 
 Proportions in the adoption of technologies were converted to transactions assuming a global number of cashless transactions of 314,210,898,142 [WorldBank. Global Payment Systems Survey 2016. (Accessed February 28, 2018)]. At each time step, CO2e emissions for the given number of transactions were estimated based on the emissions generated to mine that number of transactions in 2017.