docs: basic usage at README

README.md

@@ -1,6 +1,28 @@
 # code-templates
-# code-templates
+
+Code tamplates CLI program. Allows `template` parsing over a single input variable `name` into a desider `directory`.
+
+## Instalation
+
+1. Clone the repository
+2. Run `$ cargo biuld --release`
+
+The desired `executable` will be located inside the `target` folder.
+
+## Configuration
+
+This program is configured with `env` variables.
+1. `BLUEPRINTS_PATHS` will store the places to look for the code templates, the paths must be separated by semicolons. Example: `"BLUEPRINTS_PATHS" = "./.blueprints; ~/Another/Route"`.
+2. By default will search for the `./.blueprints` directory.
+
+## How to use it
+
+1. Run the program: `./target/release/code_templates`
+2. Select a template
+3. Insert the desired name
+4. Select the target path, this will be the directory where the files will be created
 
 ## Known issues
 
 - Only admits 1 level of encapsulation. This means that within the `templates`/`blueprints` folder, only the direct childrens will be treated as templates.
+- Only admits simple templates, with a single variable.