diff --git a/.gitignore b/.gitignore
index aee392c..6630697 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+*.lock
 *.mpv
 *.mkv
 *.mp4
diff --git a/8-lab/szyfrowanie-krzywe.rb b/8-lab/szyfrowanie-krzywe.rb
index 9cfbfc6..9d3b88f 100755
--- a/8-lab/szyfrowanie-krzywe.rb
+++ b/8-lab/szyfrowanie-krzywe.rb
@@ -11,7 +11,7 @@
 load '../module.rb'
 
 def main
-  k = 30
+  k = 2048
   m = 73
   n = m + SecureRandom.random_number(0..1000000)
   u = SecureRandom.random_number(30..50)
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..6423298
--- /dev/null
+++ b/README.md
@@ -0,0 +1,13 @@
+## How to install ruby?
+
+To install ruby you should go [here](https://www.ruby-lang.org/en/downloads/).
+
+## Install requirements:
+```bash
+bundle install
+```
+
+## Requirements in the project:
+* thwait
+
+for `Ruby 3.0.0`