chore: update readme 2023-07-04

Author: zzhenryquezz

README.md

@@ -1,6 +1,6 @@
 <div align="center">
 
-# Index-san (beta)
+# Index-san (alpha)
 
 <img src="./logo.ico" height="200" />
 
@@ -12,6 +12,12 @@ Notes app & files management app (under development)
 
 </div>
 
+##  Development status
+
+The current status is an alpha version
+
+So the current features can have huge changes in implementation or be removed later.
+
 ## About
 
 The idea is have something like notion but using files and folders instead of an usual database.