Fix ``` secions.

documentation/documentation.md

@@ -118,8 +118,9 @@ serve as an example for building more complex call control logic.
 
 To invoke the B2BUA use the following command:
 
-```python b2bua_simple.py [-f] [-L logfile] [-l local_ip] [-p local_port] [-n
-remote_ip]```
+```
+python b2bua_simple.py [-f] [-L logfile] [-l local_ip] [-p local_port] [-n remote_ip]
+```
 
 Options enclosed in square brackets are optional.
 
@@ -186,9 +187,11 @@ IEFT draft.
 
 #### Synopsis
 
-```python b2bua_radius.py [-fDu] [-l local_ip] [-p local_port] [-P pidfile] [-L
-logfile] [-s static_route] [-a ip1[,..[,ipN]]] [-k 0-3] [-m max_ctime] [-A 0-2]
-[-r rtp_proxy_contact1] [-r rtp_proxy_contact2] ... [-r rtp_proxy_contactN]```
+```
+python b2bua_radius.py [-fDu] [-l local_ip] [-p local_port] [-P pidfile] [-L logfile]
+  [-s static_route] [-a ip1[,..[,ipN]]] [-k 0-3] [-m max_ctime] [-A 0-2]
+  [-r rtp_proxy_contact1] [-r rtp_proxy_contact2] ... [-r rtp_proxy_contactN]
+```
 
 Options enclosed in square brackets are optional. The following options are
 available:
@@ -332,8 +335,14 @@ proxy. The first one is already supported by the B2BUA.
 
 For radiusclient-ng you should do the following:
 
-Install radiusclent-ng from source ``` ~# tar xvfz radiusclient-ng-X.Y.Z.tar.gz
-~# cd radiusclient-ng-X.Y.Z ~# ./configure ~# make ~# make install ```
+Install radiusclent-ng from source
+```
+~# tar xvfz radiusclient-ng-X.Y.Z.tar.gz
+~# cd radiusclient-ng-X.Y.Z
+~# ./configure
+~# make
+~# make install
+```
 
 Edit /usr/local/etc/radiusclient-ng/radiusclient.conf and set address of
 authentication and accounting servers