Update README.md

README.md

@@ -29,12 +29,14 @@ The display is a standard 16x2 LCD, but with an I2C interface. The display is co
 
 ## Open issues: 
 - [x] take care of processing cycles, by moving signal processing parts to the second core
-- [X] add some more filtering
+- [x] add some more filtering
 - [x] implement the user I/O bit: LCD+Rotary encoder+buttons
-- [ ] implement AGC and RSSI
-- [ ] implement other modes than USB
-- [ ] sort out the surrounding HW
-- [ ] maybe design a PCB?
+- [x] implement AGC 
+- [ ] implement RSSI
+- [ ] implement LSB
+- [ ] implement AM
+- [x] sort out the surrounding HW
+- [x] maybe design a PCB?
 
 ## Installing and using the SDK for Windows: 
 Please refer to https://github.com/ndabas/pico-setup-windows/releases where the latest installer can be downloaded (e.g. **pico-setup-windows-0.3-x64.exe**).