Added readme

README.md

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+# Internet speed testing
+
+## Speed-Testing
+
+The `speedtesting.py` script connects to cloudflare to test the internet
+speed. 
+
+### Running the test
+
+Execute the command in the `speedtesting/` directory: `.python/bin/python speedtesting.py`
+
+### The Output
+
+The script creates an output file `results_dd_mm_yyyy.csv`. The first line of the csv file shows which data is in which column.
+
+## Plotting the Data
+
+The `plotting.py` script plots the data of a given csv file.
+
+### Usage
+
+Execute the command: `.python/bin/python plotting.csv path/to/results.csv`.
+
+### Output
+
+It creates a `bandwidth.svg` and a `ping_jitter.svg`, with the plot for up and down and the plot for ping and jitter respectively. The x-Axis shows the index of the data pairs (line number in csv - 2) and the y-Axis shows Mbps or ms.