diff --git a/README.md b/README.md
index f0b504f..aa33d35 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,27 @@
# CalibrateSDR
-what is my SDR frequency?
+## what’s my frequency?
+
+### How to build project?
+1. Clone the repository
+2. Run cali.py
+3. Make sure you have all the required libs (check requirements.txt)
+
+### Basic commands
+python.exe cali.py -m dab -f YOURFILENAME -rs 2048000 -gr
+
+-m choose from dab / dvbt / gsm
+-rs set samplerate default is 2048000
+-gr to enable display of graphs
+
+### Troubleshoot
+
+ImportError: Error loading librtlsdr
+Possible Solution : Add the following .dll/.so files to PATH
+