[add][fix] added roadmap and fixed typos

README.md

@@ -1,17 +1,8 @@
 <h1 align="center">PingPlot</h1>
 
 <h4 align="center">
-	Want to create <strike>memes</strike> graphs of your network connectivity? Ping and plot away:</h4>
+	Want to create <strike>memes</strike> graphs of your network connectivity? Ping and plot away:
-
+</h4><br>
-<p align="center">
-    <strong>
-        <a href="#getting-started">Getting started</a> 
-        • <a href="#configuration">Configuration</a> 
-        • <a href="#roadmap">Roadmap</a>
-	</strong>
-</p><br>
-
-
 <p align="center">
 <img src="docs/internet.png" width="800px">
 </p>
@@ -35,7 +26,7 @@ This tool requires `net-tools` (if not using a docker container) and `gnuplot` i
 
 3. Plot the data with [`./plotter/plot.sh`](plotter/plot.sh)
 
-## Configuration
+## Advanced Configuration
 
 ### Plot
 

docker-compose.yml

@@ -14,7 +14,7 @@ services:
       #- SERVERS=127.0.0.1
       #          0.0.0.0
       #          localhost
-      # use iso-8601 instead of epoch timestamp [default: +%s]
+      # use iso-8601 instead of epoch timestamp [default: -+%s]
       #- DATE_FORMAT=-Iseconds
       # set the cycle at which servers are pinged [default: 60s]
       #- CYCLE=60s