Moved contribution instructions to the footer

Makefile

@@ -1,5 +1,5 @@
-README.md: data/header.md data/cli-apps.md
-	cat data/header.md data/cli-apps.md > README.md
+README.md: data/header.md data/footer.md data/cli-apps.md
+	cat data/header.md data/cli-apps.md data/footer.md > README.md
 
 data/cli-apps.md: cli2md.py data/apps.csv data/categories.csv data/resources.csv data/articles.csv
 	python3 cli2md.py > data/cli-apps.md

data/footer.md

@@ -0,0 +1,42 @@
+# <a name="contribute"></a>How to contribute
+
+If you have any suggestion or want your project included in the list, you can contribute in the following ways.
+
+## Open an issue
+
+To suggest a new program, check the existence of the program in the list.
+If it is not present, you can open an issue including the following list:
+
+- `name`: Name of the program
+- `homepage`: URL of the homepage (if it exists)
+- `git`: URL of a clonable git repository (if it exists)
+- `description`: Text to the description of the program
+
+One or both of the two item `homepage` or `git` must be present.
+
+## Pull request on `data/apps.csv`
+
+The peculiarity of this repository is that the source of information is structured into CSV files with a simple structure.
+See the `data/` directory.
+
+If you want to contribute using a pull request, add the new entry to `data/apps.csv`.
+In the CSV file, the `git` field refers to a **clonable git URL**.
+
+Please make changes **to the CSV file only**, **not to the README file**.
+I will review the request and, upon acceptance, I will take care of generating the README and updating the list.
+
+## Contribution via email
+
+If you prefer an email, contact me at `toolleeo@gmail.com` by sending the same information required for the "open an issue" method.
+
+# Generation of the README file
+
+If necessary, this `README` file can be (re-)generated from the CSV files.
+To build `README.md` run:
+
+```
+make
+```
+
+`python3` is required for building. And `make`, of course. :-)
+

data/header.md

@@ -6,28 +6,4 @@ To the best of my knowledge, this is the largest collection of CLI/TUI tools ava
 
 If you are looking for additional information, you may like [CLIpedia](https://robot.unipv.it/clipedia/), a growing blog about CLI/TUI programs.
 
-# Data organization and building of the list
-
-The peculiarity of this repository is that the source of information is structured into CSV files with a simple structure.
-See the `data/` directory.
-
-This `README` file is generated from the CSV files.
-To build `README.md` run:
-
-```
-make
-```
-
-`python3` is required for building. And `make`, of course. :-)
-
-# How to contribute
-
-If you have any suggestion or want your project included in the list, you can either open a pull request or send me an email with the necessary information.
-
-If you want to contribute through a pull request, make sure to add new entries to the correct CSV file under the `data/` directory.
-In the CSV, the `git` field refers to a **clonable git URL**.
-
-Please commit changes **to the CSV file only**, **not the README**.
-I will review the request and, upon acceptance, I will take care of generating the README and updating the list.
-
-If you prefer an email, contact me at `toolleeo@gmail.com`.
+To contribute, see [this section](#contribute).