updated developer info in readme

README.md

@@ -1,3 +1,24 @@
 # Sartorius Logger
 
 Make time series measurements with a Sartorius scale.
+
+
+## Development
+
+To install the development version of sartorius logger:
+
+    git clone https://git.cpi.imtek.uni-freiburg.de/holgi/sartoriuslogger
+    cd sartoriuslogger
+
+    # create a virtual environment and activate it
+    python3 -m venv --prompt sartorius .venv
+    .venv/bin/activate
+
+    # upgrade pip, install flit and sartoriuslogger
+    python3 -m pip install --upgrade pip
+    python3 -m pip install flit
+    python3 -m flit install --pth-file
+
+To run the tests, run `make tests` or `make coverage` for a complete report.
+
+To build the SartoriusLogger windows app, run the `make.bat` file.