Update README to mention new ECG analysis functions (and add link to …

…EEGrunt ECG tutorial).

README.md

@@ -1,9 +1,11 @@
-# EEGrunt: A Collection Python EEG Analysis Utilities
+# EEGrunt: A Collection Python EEG (+ECG) Analysis Utilities
 
 ### [READ THE ANNOUNCEMENT POST »][1]
 
 Working with EEG (electroencephalography) data is hard, and this little library aims to make it easier. EEGrunt consists of a collection of functions for reading EEG data from CSV files, converting and filtering it in various ways, and finally generating pretty and informative visualizations.
 
+**Update:** We’ve added functions to plot heart rate and heart rate variability from recorded OpenBCI ECG (electrocardiography) data. You can test these out with the `analyze_ecg_channel.py` and `analyze_ecg_data.py` demo scripts. We’ve posted a new tutorial on our blog to get you started: **[EEGrunt update: Analyze heart rate and HRV with Python][2]**
+
 
 ## Features
 
@@ -21,5 +23,7 @@ Working with EEG (electroencephalography) data is hard, and this little library
 3. Take a look in `analyze_data.py` and edit at will, or create your own script using `EEGrunt.py`. **Make sure to set the required variables — device, path, and filename.**
 4. Run it: `python analyze_data.py`
 5. [Read the announcement post for the official tutorial!][1]
+6. [Optional] Interested in [analyzing ECG  data with EEGrunt][2]? Take a look at the [new tutorial][2].
 
 [1]: http://www.autodidacts.io/eegrunt-open-source-python-eeg-analysis-utilities/
+[2]: http://www.autodidacts.io/analyze-ecg-heart-rate-and-hrv-with-python-and-eegrunt/