Updated Readme

Author: codeAbinash

README.md

@@ -1,4 +1,12 @@
-# eval
+# eval ⚡
 A tool fot evaluating arithmetic expression from your terminal 😎 🧑🏻‍💻.
 
-No need to open your calculator again for basic calculation. Just type `eval {{expression}}` in your terminal😎. Calculate quickly in your terminal.
+<img style="width:100%" src="https://codeabinash.github.io/eval-arithmetic-string-expression/media/logo.png" alt="Logo">
+
+No need to open your calculator again for basic calculation. Just type `eval {{expression}}` in your terminal😎. Calculate quickly in your terminal.
+
+
+## How to use
+![How to Use](https://codeabinash.github.io/eval-arithmetic-string-expression/media/example.png)
+
+> Must add this file's location to environment(path) variable.