diff --git a/README.md b/README.md
index ed5ca8e..4932359 100644
--- a/README.md
+++ b/README.md
@@ -7,14 +7,22 @@ Outputs result in stdout.
 ## Usage
 
 ```shell
-csv2md example.csv > example.md # save result to new file
-csv2md example.csv | less       # view result using pager
+csv2md (-h|-help|--help|help)    # to get this help
+csv2md example.csv               # convert data from file and write result in stdout
+csv2md < example.csv             # convert data from stdin and write result in stdout
+cat example.csv | csv2md         # convert data from stdin and write result in stdout
+csv2md example.csv > example.md  # convert data from file and write result in new file
+csv2md example.csv | less        # convert data from file and write result in stdout using pager
+csv2md                           # paste or type data to stdin by hands
+                                 # press Ctrl+D to view result in stdout
+csv2md > example.md              # paste or type data to stdin by hands
+                                 # press Ctrl+D to write result in new file
 
 ...anything is possible with redirection and piping
 ```
 
 > **IMPORTANT:**
-> * input file must be valid csv
+> * input must be valid csv
 > * whitespaces allowed only between double-quotes
 
 Examples can be found here: https://people.sc.fsu.edu/~jburkardt/data/csv/csv.html
@@ -22,7 +30,7 @@ Examples can be found here: https://people.sc.fsu.edu/~jburkardt/data/csv/csv.ht
 ## Compilation
 
 1) [Install go](https://go.dev/learn/).
-2) Clone this repo.
+2) Download this repo via zip or `git clone`.
 3) Run `make help` to get help or `go run . <csv_path>` to build and run temporary binary.
 
 ## License