* some minor corrections

doc/package_versions.tex

@@ -16,12 +16,12 @@ packages.
 
 Source version is the version number provided is provided by the
 upstream maintainer of the source archive used in package. It must be
-allways the same with the upstream version used.
+always the same as the upstream version used.
 
 \textbf{Example}: If the upstream archive name is
 \emph{bash-3.0.tar.gz} the version number of the package is \emph{3.0}
 
-\subsection{Version Prefix}
+\subsection{Version Suffixes}
 
 There is a pre-defined list of suffixes a package version can
 take.
@@ -30,13 +30,13 @@ take.
   \item \textbf{alpha} Source/Package is in alpha state
   \item \textbf{beta} Source/Package is in beta state
   \item \textbf{pre} Source/Pacgage passed the beta state but stable
-    version isn't relased yet.
+    version is not relased yet.
   \item \textbf{rc} Source/Package is a release-candidate.
   \item \textbf{p} Source/Package is released and some patches are
     applied after the release. This is the patch level.
 \end{itemize}
 
-The suffix should be written after the special seperator
+The suffix should be written after the special separator
 character \textbf{\_}. And there must allways be a number after a
 suffix. \textbf{Example}: packagename-1.0\_beta1