Add linespacing in README.

README.md

@@ -7,21 +7,29 @@ to output the values you are interested in,
 typically to log and be processed by another tool.
 
 Builds and runs on GNU/Linux:
+
 make
+
 ./build/wmbusmeters
+
 ./build/wmbusmeters --verbose
 
 make HOST=arm
+
 ./build_arm/wmbusmeters
 
 make DEBUG=true
+
 ./build_debug/wmbusmeters
 
 make DEBUG=true HOST=arm
+
 ./build_arm_debug/wmbusmeters
 
 (After you insert the im871A USB stick, do:
+
 chown me:me /dev/ttyUSB0
+
 to avoid having to run the program as root.)
 
 Currently only supports the USB stick receiver im871A
@@ -30,14 +38,19 @@ and it should be relatively straightforward to add
 more receivers (Amber anyone?) and meters.
 
 Good documents on the wireless mbus protocol:
+
 https://www.infineon.com/dgdl/TDA5340_AN_WMBus_v1.0.pdf
+
 http://fastforward.ag/downloads/docu/FAST_EnergyCam-Protocol-wirelessMBUS.pdf
 
 The AES source code is copied from:
+
 https://github.com/kokke/tiny-AES128-C
 
 The following two other github projects were of great help:
+
 https://github.com/ffcrg/ecpiww
+
 https://github.com/tobiasrask/wmbus-client
 
 Code can print total water consumption! But everything else is