docs: update README

README.md

@@ -1,24 +1,42 @@
-Quick start
+# pub.solar finances
+
+This repository is used to track the finances of pub.solar transparently.
+We use [hledger](https://hledger.org/) to create finance report in a minimalistic, terminal friendly
+way.
+
+### Quick start
+
+Installing hledger with [nix](https://nixos.org/download), the package manager.
+
 ```
-nix shell latest#hledger latest#hledger-web
+git clone gitea@git.pub.solar:pub-solar/finances.git finances && cd $_
+nix develop
 ```
 
-Report without negative numbers
+or with [direnv](https://github.com/nix-community/nix-direnv).
+
+```
+git clone gitea@git.pub.solar:pub-solar/finances.git finances && cd $_
+direnv allow
+```
+
+Creating a report without negative numbers
 ```
 hledger incomestatement --file ./finances.hledger --layout bare --pretty --drop 1
 ```
 
-Web report for viewing it in a  browser
+Creating a web report, viewable in a browser
 ```
 hledger-web --file ./finances.hledger
 ```
 
-Write HTML table to README
+Writing a HTML table to the README
 ```
 hledger incomestatement --file ./finances.hledger --layout bare --pretty --drop 1 -O html >> README.md
 ```
 
-Test generated report table
+### Finances report table
+
 <style>
 td { padding:0 0.5em; }
 td:nth-child(1) { white-space:nowrap; }