Update README.md

Author: histrio

README.md

@@ -1,2 +1,24 @@
 # kcare-uchecker
 A simple tool to detect outdated shared libraries
+
+## Usage
+
+Simple script run will looks like
+
+``` bash
+$ curl -s -L https://kernelcare.com/uchecker | sudo python
+[*] Process httpd[15516] linked to the `libc-2.17.so` that is not up to date.
+
+You may want to update libraries above and restart corresponding processes.
+
+KernelCare+ allows to resolve such issues with no process downtime. To find 
+out more, please, visit https://lp.kernelcare.com/kernelcare-early-access?
+```
+
+## Troubleshooting
+
+For more verbose output you can choose logging level from ERROR, WARNING, INFO and DEBUG. For example
+
+``` bash
+$ curl -s -L https://kernelcare.com/uchecker | sudo LOGLEVEL=debug python
+```