update instructions to install stack; add basic instructions for using fpm

Author: milancurcic

README.md

@@ -2,28 +2,50 @@
 
 A prototype version.
 
-## How to try it out
+## Getting started
 
 ### Install Haskell
 
-Install Haskell Stack from (https://haskellstack.org/). E.g., to install on
-Linux without root access, follow the [manual download](https://docs.haskellstack.org/en/stable/install_and_upgrade/#manual-download_2):
+To install [Haskell Stack](https://haskellstack.org/) on
+Linux without root access, follow the [manual download](https://docs.haskellstack.org/en/stable/install_and_upgrade/#manual-download_2) procedure:
 ```
 wget https://get.haskellstack.org/stable/linux-x86_64-static.tar.gz
 tar xaf linux-x86_64-static.tar.gz
 ```
-and put the `stack` binary in your path, for example by:
+and put the `stack` binary in your path, for example:
 ```
 export PATH="$PATH:`pwd`/stack-2.1.3-linux-x86_64-static/"
 ```
 
+### Download this repo
+
+```
+git clone https://github.com/fortran-lang/fpm
+cd fpm
+```
+
 ### Build and Test FPM
 
-Build using:
+Build FPM using:
 ```
 stack build
 ```
 To test:
 ```
 stack test
 ```
+To install:
+```
+stack install
+```
+
+### Building your Fortran project with FPM
+
+1. Copy `example_fpm.toml` from this repository 
+to the base directory of your Fortran project.
+2. Rename it to `fpm.toml`.
+3. Edit `fpm.toml` for your package.
+4. Type `fpm build`.
+5. (optional) If you have tests, type `fpm test`.
+6. (optional) If your package is an executable program,
+run it by typing `fpm run`.