Proofread and fixed a couple incorrect plurals and tenses.

1 - Introduction/Introduction.tex

@@ -1,12 +1,12 @@
-Programming In General is meant to be used as a resource to learn the concepts of computer programming that can be applied to any
+Programming In General is meant to be used as a resource to learn the concepts of computer programming that they can be applied to any
 language or platform.
 \par
 
 This resource is and always will be provided for free.
 \par
 
-This resource is currently a work in progress so please bear with me if any particular sections or chapters are in complete or
-if sections contain less than correct information.
+This resource is currently a work in progress so please bear with me if any particular section or chapter is incomplete or
+if a section contains less than correct information.
 If you have any comments, questions, suggestions or corrections please feel free to contact me by e-mail at: \emph{brett@blangdon.com}
 \\
 \par