init: add readme

Signed-off-by: ncatt <ncatt@noreply.cuynutt>

README.md

@@ -0,0 +1,35 @@
+`
+errvà
+`
+
+### about it?
+
+**errvà** is just a script build Android kernels more easier.
+
+---
+
+### features?
+
+umm...just install packages for build kernel and build
+
+---
+
+### how to install it?
+
+first, we must clone this repo:
+```
+git clone https://cuynutt.ddns.net/ncatt/errva ~/errva
+```
+
+cd to folder and run!
+```
+cd ~/errva/main
+bash god.sh
+```
+
+---
+
+### todo
+- add kernelsu setup
+- add tweaks (must clone repo)
+- more ig?