update readme

README.md

@@ -1,6 +1,6 @@
 # CTTS
 
-> closer to the stars
+> notice: this is alpha software; apis may change quickly, and quality of the brightness prediction is still being ironed out
 
 CTTS is an open source application for reading [sky brightness](https://en.wikipedia.org/wiki/Sky_brightness) all over the
 earth, without a sensor.
@@ -66,6 +66,14 @@ for H3 cells and that the consumer service is storing them in the postgres table
 `mpsas` in the response stands for 'magnitudes per square arcsecond', and it is the predicted brightness
 value for that location.
 
+## todos
+
+- [ ] support for continents other than north america
+- [ ] less noisy container startup
+- [ ] live updates to open meteo data while app is running
+- [ ] REST apis in addition to the gRPC ones
+- [ ] better storage of predictions in order to faciliate grouping/sorting
+
 ## documentation
 
 - [api client usage](./api/README.md)