OpenFPM-pdata-advanced-options.md

 ## Debug options
 
-If you are using our library can be usefull, to put the library in debug mode to discover mamory corruption, overflow, memory leak, or any other abuse of API or bug in your code. The options are activated
-in different ways if you are compiling the unit test or you are compiling external code
+If you are using our library can be usefull, to put the library in debug mode to discover memory corruption, overflow, memory leak, or any other abuse of API or bug in your code. The options are activated
+in different ways if you are compiling the unit tests or you are compiling external code
 
 ### External code
 
-* defining the macro SE_CLASS1 before include any openfpm header enable security enhancements of class1
-* define the macro SE_CLASS2 before include any openfpm header enable security enhancements of class2
-* define the macro SE_CLASS3 before include any openfpm header enable security enhancements of class3
+* defining the macro SE_CLASS1 before include any openfpm headers enable security enhancements of class1
+* define the macro SE_CLASS2 before include any openfpm headers enable security enhancements of class2
+* define the macro SE_CLASS3 before include any openfpm headers enable security enhancements of class3
 * define the macro 
 
 ### Unit test