Update tutorial

docs/tutorial/0.md

@@ -1,9 +1,9 @@
 
-## Exit
+## Exiting `tird`
 
 ---
 
-#### Exit with action #0
+#### Exiting `tird` with action #0
 
 Select option `0` and press `Enter` to exit the menu.
 
@@ -34,7 +34,7 @@ I: action #0: exit
 
 ---
 
-#### Exit with `Ctrl` + `C`
+#### Exiting `tird` with `Ctrl` + `C`
 
 Press `Ctrl` + `C` to exit.
 
@@ -65,7 +65,7 @@ I: caught signal 2
 
 ---
 
-#### Exit from an ongoing action with `Ctrl` + `C`
+#### Exiting `tird` from an ongoing action with `Ctrl` + `C`
 
 Press `Ctrl` + `C` to exit. Aborting an unfinished action results in an error exit.
 

docs/tutorial/1.md

@@ -1,9 +1,9 @@
 
-## Show info
+## Displaying info
 
-#### Show info with action #1:
+#### Displaying info with action #1:
 
-Select option `0` and press `Enter` to exit the information.
+Select option `1` and press `Enter` to display the information (`tird` version, description and homepage).
 
 <details>
 <summary>Screenshot</summary>

docs/tutorial/23.md

@@ -3,6 +3,8 @@
 
 #### Encrypt
 
+Encrypt 500000-byte `file1` into `file2`.
+
 <details>
 <summary>Screenshot</summary>
 
@@ -60,6 +62,8 @@ I: action is completed
 
 #### Decrypt
 
+Decrypt `file2` into `file3`.
+
 <details>
 <summary>Screenshot</summary>
 

docs/tutorial/8.md

@@ -103,15 +103,8 @@ I: action is completed
 ```
 </details>
 
-
 ---
 
-
-
-
-
-
-
 #### Creating 3 GB file
 
 <details>

docs/tutorial/README.md

@@ -1,7 +1,7 @@
 
 ## Tutorial
 
-- [Exiting](https://github.com/hakavlad/tird/blob/main/docs/tutorial/0.md)
+- [Exiting `tird`](https://github.com/hakavlad/tird/blob/main/docs/tutorial/0.md)
 - [Displaying info (version, descryption, homepage)](https://github.com/hakavlad/tird/blob/main/docs/tutorial/1.md)
 - [Creating files with uniform random data](https://github.com/hakavlad/tird/blob/main/docs/tutorial/8.md) (creating keyfiles and containers)
 - [Overwriting file contents with uniform random data](https://github.com/hakavlad/tird/blob/main/docs/tutorial/9.md) (destroying residual data and preparing containers)