updated README

README.rst

@@ -6,7 +6,7 @@ Menshen is a geolocation and gateway status service for LEAP VPN.
 In chinese folk religions, `menshen <https://en.wikipedia.org/wiki/Menshen>`_
 are guardians of doors and gates.
 
-The geolocation service provides the remote ip (via X-Forwarded-For header, if
+The geolocation service provides the remote IP (via X-Forwarded-For header, if
 present), country code, city, and geographical coordinates. Information is
 provided in plain text format, under ``/``, and in json, under ``/json``.
 
@@ -20,14 +20,17 @@ You can use ``geoipupdate`` to download MaxMind's City database::
 
     sudo apt install geoipupdate
     sudo cp /usr/share/doc/geoipupdate/examples/GeoIP.conf.default /etc/GeoIP.conf
+    sudo sed -i 's/YOUR_ACCOUNT_ID_HERE/xxxxxx/' /etc/GeoIP.conf
+    sudo sed -i 's/YOUR_LICENSE_KEY_HERE/xxxxxx/' /etc/GeoIP.conf
     sudo geoipupdate -v
 
-(note: this service now requires a license key)
+Note: downloading the city database requires a free license key.
 
 Usage
 -----------------------
+
 -api <tld>
-        domain for the api. Default: black.riseup.net. It can be also set via MENSHEN_API env var.
+	domain for the api. Default: black.riseup.net. It can be also set via MENSHEN_API env var.
 -geodb <path>
 	path to the GeoLite2-City database (default is "/var/lib/GeoIP/GeoLite2-City.mmdb")
 -port <port>
@@ -39,3 +42,32 @@ Usage
 -server_key string
 	path to the key file for TLS
 
+Running Locally
+-----------------------
+
+There are several options for running menshen locally for development.
+
+As a container from the registry::
+
+    docker pull registry.0xacab.org/leap/menshen
+    docker run -p 9001:9001 -v /var/lib/GeoIP/:/var/lib/GeoIP/ -e "MENSHEN_API=https://api.example.org" registry.0xacab.org/leap/menshen
+
+As a container built locally::
+
+    docker build -t menshen:latest .
+    docker run -p 9001:9001 -v /var/lib/GeoIP/:/var/lib/GeoIP/ -e "MENSHEN_API=https://api.example.org" menshen:latest
+
+Run without container::
+
+    go build
+    ./menshen -notls -api https://api.example.org
+
+Fetch the results::
+
+    curl -H "X-Forwarded-For: 8.8.8.8" localhost:9001/json
+
+See Also
+-----------------------
+
+<https://github.com/weaming/geoip>
+