Remove double spaces

Reading the RST spec, I was trying to get breaks to appear by entering the double spaces after the lines in the code blocks. It does not work anyway, and, as pointed out, I've removed.

docs/turn-howto.rst

@@ -19,11 +19,11 @@ coturn Setup
 You may be able to setup coturn via your package manager,  or set it up manually using the usual ``configure, make, make install`` process.  
 
  1. Check out coturn::
-      svn checkout https://github.com/coturn/coturn.git coturn  
-      cd coturn  
+      svn checkout https://github.com/coturn/coturn.git coturn
+      cd coturn
 
  2. Configure it::
-      ./configure  
+      ./configure
 
     You may need to install libevent2: if so, you should do so
     in the way recommended by your operating system.
@@ -31,21 +31,21 @@ You may be able to setup coturn via your package manager,  or set it up manually
     database is unnecessary for this purpose.
 
  3. Build and install it::
-      make  
-      make install  
+      make
+      make install
 
  4. Create or edit the config file in ``/etc/turnserver.conf``. The relevant
     lines, with example values, are::
 
-      lt-cred-mech  
-      use-auth-secret  
-      static-auth-secret=[your secret key here]  
-      realm=turn.myserver.org  
+      lt-cred-mech
+      use-auth-secret
+      static-auth-secret=[your secret key here]
+      realm=turn.myserver.org
 
     See turnserver.conf for explanations of the options.
     One way to generate the static-auth-secret is with pwgen::
 
-       pwgen -s 64 1  
+       pwgen -s 64 1
 
  5. Ensure youe firewall allows traffic into the TURN server on
     the ports you've configured it to listen on (remember to allow
@@ -55,7 +55,7 @@ You may be able to setup coturn via your package manager,  or set it up manually
     import your private key and certificate.
 
  7. Start the turn server::
-       bin/turnserver -o  
+       bin/turnserver -o
 
 
 synapse Setup
@@ -92,4 +92,3 @@ Now, restart synapse::
     ./synctl restart
 
 ...and your Home Server now supports VoIP relaying!
-