typo fixing; moved a paragraph to correct position - docs

Author: cayetanobv

Readme.md

@@ -32,9 +32,7 @@ make
 make install
 ```
 
-If you have libraries installed in non-standard locations, you might need to pass in parameters to cmake.  Commonly useful parameters are
-
-Install some prerqeuisites
+Install some prerequisites:
 
 ```
 sudo apt-get install expat
@@ -44,6 +42,8 @@ sudo apt-get install libboost-program-options-dev
 sudo apt install libpqxx-dev
 ```
 
+If you have libraries installed in non-standard locations, you might need to pass in parameters to cmake. Commonly useful parameters are
+
 CMAKE options:
 
     -DBOOST_ROOT:PATH=/path/to/boost  folder that contains include, lib, bin directories for boost