[wip] extend README file

README.md

@@ -1,3 +1,69 @@
 # FreifunkManager [![Build Status](https://travis-ci.org/FreifunkBremen/freifunkmanager.svg?branch=master)](https://travis-ci.org/FreifunkBremen/freifunkmanager) [![Coverage Status](https://coveralls.io/repos/github/FreifunkBremen/freifunkmanager/badge.svg?branch=master)](https://coveralls.io/github/FreifunkBremen/freifunkmanager?branch=master)
 is a little software to manage gluon nodes with the help of ssh and yanic
 (used on the Breminale since 2017)
+
+## Getting Started
+- install Go (version 1.10 or higher)
+  - note that system packages are usually too old; see https://golang.org/doc/install for install instructions
+  - set $GOPATH (`export GOPATH=$HOME/go`)
+  - full install:
+    - mkdir -p ~/inst
+    - cd ~/inst
+    - wget https://dl.google.com/go/go1.10.3.linux-amd64.tar.gz
+    - tar xf go1.10.3.linux-amd64.tar.gz
+    - export PATH=~/inst/go/bin/:$PATH
+    - export GOROOT=~/inst/go/
+
+- install nodejs >= 4.8
+  - mkdir -p ~/inst
+  - cd ~/inst
+  - wget https://nodejs.org/dist/v8.11.3/node-v8.11.3-linux-x64.tar.xz
+  - tar xf node-v8.11.3-linux-x64.tar.xz
+  - export PATH=~/inst/node-v8.11.3-linux-x64/bin/:$PATH
+
+- install yarn (https://yarnpkg.com/en/docs/install)
+  - mkdir -p ~/inst
+  - cd ~/inst
+  - wget https://github.com/yarnpkg/yarn/releases/download/v1.7.0/yarn-v1.7.0.tar.gz
+  - tar xf yarn-v1.7.0.tar.gz
+  - export PATH=~/inst/yarn-v1.7.0/bin/:$PATH
+
+- download and build freifunkmanager:
+  - go get -t github.com/FreifunkBremen/freifunkmanager/...
+  - go get github.com/mattn/goveralls
+  - go get "golang.org/x/tools/cmd/cover"
+  - cd ~/go/src/github.com/FreifunkBremen/freifunkmanager/
+  - go build
+  - cd webroot
+  - yarn install
+  - yarn gulp build
+- run:
+  - ./freifunkmanager -config config_example.conf
+
+
+## Usage
+Visit http://localhost:8080/
+
+Navigation bar at top of page:
+- marker icon: ???
+- List: show list of all known nodes
+  - use Edit link in last column of a node to edit its details; changes made on the Edit page are saved immediately
+  - to change just the hostname, double-click on hostname field in list and make your change
+- Map: show map of nodes
+  - use Layers icon in upper right corner to enable geojson overlay and view clients
+- Statistics: show statistics about nodes, clients, used channels...
+- Login with text field: enter password (value of "secret" in config file) and click "Login" to log in
+  - this is necessary to make any changes
+  - there is no user management; anybody who has the password has full access
+- blue rectangle on the far right: ??? (connection status?)
+  - click to reconnect?
+
+
+## Technical Details
+
+List of known APs will be retrieved from Yanic (ie. representing live data).
+Additionally, APs can be added manually by visiting a page like /#/n/apname (where apname is the name of the new AP), and then 
+
+Each browser tab has a websocket connection to the server, so changes made in one tab will appear immediately in other tabs as well
+
+All changes are saved to state file (eg. /tmp/freifunkmanager.json - can be changed in config file).