Fix some typos

PACKAGES.md

@@ -15,21 +15,23 @@ type of system.
 
 When building repmgr against a RPM packaged build, you may discover that some
 development packages are needed as well.  The following build errors can
-occur::
+occur:
-
+```
   /usr/bin/ld: cannot find -lxslt
   /usr/bin/ld: cannot find -lpam
+```
+Install the following packages to correct those:
 
-Install the following packages to correct those::
+```
-
   yum install libxslt-devel
   yum install pam-devel
-
+```
 If building repmgr as a regular user, then doing the install into the system
 directories using sudo, the syntax is hard.  ``pg_config`` won't be in root's
-path either.  The following recipe should work::
+path either.  The following recipe should work:
-
+```
   sudo PATH="/usr/pgsql-9.0/bin:$PATH" make USE_PGXS=1 install
+```
 
 Issues with 32 and 64 bit RPMs
 ------------------------------
@@ -39,16 +41,18 @@ If when building, you receive a series of errors of this form::
   /usr/bin/ld: skipping incompatible /usr/pgsql-9.0/lib/libpq.so when searching for -lpq
 
 This is likely because you have both the 32 and 64 bit versions of the
-``postgresql90-devel`` package installed.  You can check that like this::
+``postgresql90-devel`` package installed.  You can check that like this:
 
+```
   rpm -qa --queryformat '%{NAME}\t%{ARCH}\n'  | grep postgresql90-devel
+```
 
 And if two packages appear, one for i386 and one for x86_64, that's not supposed
 to be allowed.
 
 This can happen when using the PGDG repo to install that package;
-here is an example sessions demonstrating the problem case appearing::
+here is an example sessions demonstrating the problem case appearing:
-
+```
   # yum install postgresql-devel
   ..
   Setting up Install Process
@@ -66,6 +70,7 @@ here is an example sessions demonstrating the problem case appearing::
   Installing:
    postgresql90-devel    i386      9.0.2-2PGDG.rhel5    pgdg90        1.5 M
    postgresql90-devel    x86_64    9.0.2-2PGDG.rhel5    pgdg90        1.6 M
+```
 
 Note how both the i386 and x86_64 platform architectures are selected for
 installation.  Your main PostgreSQL package will only be compatible with one of
@@ -73,10 +78,12 @@ those, and if the repmgr build finds the wrong postgresql90-devel these
 "skipping incompatible" messages appear.
 
 In this case, you can temporarily remove both packages, then just install the
-correct one for your architecture.  Example::
+correct one for your architecture.  Example:
 
+```
   rpm -e postgresql90-devel --allmatches
   yum install postgresql90-devel-9.0.2-2PGDG.rhel5.x86_64
+```
 
 Instead just deleting the package from the wrong platform might not leave behind
 the correct files, due to the way in which these accidentally happen to interact.
@@ -94,14 +101,18 @@ called ``postgresql-server-dev-$version``.
 
 When building repmgr against a Debian packages build, you may discover that some
 development packages are needed as well. You will need the following development
-packages installed::
+packages installed:
 
+```
   sudo apt-get install libxslt-dev libxml2-dev libpam-dev libedit-dev
+```
 
 If you're using Debian packages for PostgreSQL and are building repmgr with the
-USE_PGXS option you also need to install the corresponding development package::
+USE_PGXS option you also need to install the corresponding development package:
 
+```
   sudo apt-get install postgresql-server-dev-9.0
+```
 
 If you build and install repmgr manually it will not be on the system path. The
 binaries will be installed in /usr/lib/postgresql/$version/bin/ which is not on
@@ -110,14 +121,17 @@ multiple installed versions of PostgreSQL on the same system through a wrapper
 called pg_wrapper and repmgr is not (yet) known to this wrapper.
 
 You can solve this in many different ways, the most Debian like is to make an
-alternate for repmgr and repmgrd::
+alternate for repmgr and repmgrd:
 
+```
   sudo update-alternatives --install /usr/bin/repmgr repmgr /usr/lib/postgresql/9.0/bin/repmgr 10
   sudo update-alternatives --install /usr/bin/repmgrd repmgrd /usr/lib/postgresql/9.0/bin/repmgrd 10
+```
 
-You can also make a deb package of repmgr using::
+You can also make a deb package of repmgr using:
-
+```
   make USE_PGXS=1 deb
+```
 
 This will build a Debian package one level up from where you build, normally the
 same directory that you have your repmgr/ directory in.