Update README

README.md

@@ -1,2 +1,58 @@
 # hrflow
-HR Flow CLI
+
+[HR Flow](https://hrflow.accountor.fi/) CLI
+
+## Usage
+
+`hrflow help`
+
+### Creating Reports
+
+```
+NAME:
+   hrflow report - add a new hour report
+
+USAGE:
+   hrflow report [command options] [arguments...]
+
+OPTIONS:
+   --duration value, -d value     number of hours to report, formatted as 8h30m. Will be ignored if both start and end time are defined. (default: "8h")
+   --start TIME, -s TIME          Set workday start to TIME. (default: now - HOURS)
+   --end TIME, -e TIME            Set workday end to TIME. (default: now)
+   --project PROJECT, -p PROJECT  which PROJECT to assign to the report. (default: none)
+   --comment COMMENT, -c COMMENT  assign a COMMENT to the report. (default: empty)
+   --date DATE                    DATE for the report, format 'd.M.' (years not supported) (default: today)
+   --help, -h                     show help (default: false)
+```
+
+#### Quickly Reporting 8 Hours
+
+Running `hrflow report` will report an 8 hour workday ending at current time.
+
+## Installation
+
+Create a file for the login at `~/.hrflow` with the contents:
+
+```
+username: USERNAME
+password: PASSWORD
+```
+
+### Homebrew (macOS and Linux)
+
+```
+brew tap myyra/hrflow https://github.com/myyra/hrflow
+brew install hrflow
+```
+
+### Go
+
+Make sure Go is installed on your machine and `$GOPATH/bin` is in you `$PATH`. Then run
+
+```
+go get -u github.com/myyra/hrflow
+```
+
+### Binary
+
+Binaries are available from the [Releases](https://github.com/myyra/hrflow/releases) page.