Refactor template files (contributed by Velimir from LaTexTemplates.com)

- remove 'import' package
- change comment style
- delete unused file(cvletter.tex)

examples/resume/writing.tex

@@ -1,23 +1,37 @@
+%-------------------------------------------------------------------------------
+%	SECTION TITLE
+%-------------------------------------------------------------------------------
 \cvsection{Writing}
+
+
+%-------------------------------------------------------------------------------
+%	CONTENT
+%-------------------------------------------------------------------------------
 \begin{cventries}
+
+%---------------------------------------------------------
   \cventry
-    {Founder \& Writer}
-    {A Guide for Developers in Start-up}
-    {Facebook Page}
-    {Jan. 2015 - PRESENT}
+    {Founder \& Writer} % Role
+    {A Guide for Developers in Start-up} % Title
+    {Facebook Page} % Location
+    {Jan. 2015 - PRESENT} % Date(s)
     {
-      \begin{cvitems}
+      \begin{cvitems} % Description(s)
         \item {Drafted daily news for developers in Korea about IT technologies, issues about start-up.}
       \end{cvitems}
     }
+
+%---------------------------------------------------------
   \cventry
-    {Undergraduate Student Reporter}
-    {AhnLab}
-    {S.Korea}
-    {Oct. 2012 - Jul. 2013}
+    {Undergraduate Student Reporter} % Role
+    {AhnLab} % Title
+    {S.Korea} % Location
+    {Oct. 2012 - Jul. 2013} % Date(s)
     {
-      \begin{cvitems}
+      \begin{cvitems} % Description(s)
         \item {Drafted reports about IT trends and Security issues on AhnLab Company magazine.}
       \end{cvitems}
     }
+
+%---------------------------------------------------------
 \end{cventries}