diff --git a/README.md b/README.md
index 4dceeb7..4b7a662 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,13 @@
 # tcp-cca-const
 
-The fastest as well as the most wicked TCP congestion control "algorithm". There shouldn't be too many people knowing this secret or the world will be ruined.
\ No newline at end of file
+The fastest as well as the most wicked TCP congestion control "algorithm". There shouldn't be too many people knowing this secret or the world will be ruined.
+
+## Usage:
+```bash
+make
+insmod tcp_const.ko # Require root privilege
+```
+
+## Troubleshooting:
+
+If compilation failed and says the function signature does not match, simply delete those two unnamed parameters.