Small changes.

manual/opencs/filters.tex

@@ -3,7 +3,7 @@
 Filters are the key element of OpenCS use cases by allowing rapid and easy access to the searched records presented in all tables. Therefore: in order to use this application fully effective you should make sure that all concepts and instructions written in the this section of the manual are perfectly clear to you.\\
 Don't be afraid though, filters are fairly intuitive and easy to use.
 
-\subsection{Used Terms}
+\subsubsection{Used Terms}
 
 \begin{description}
  \item[Filter] is generally speaking a tool able to ``Filter'' (that is: select some elements, while discarding others) according to the some criteria. In case of OpenCS: records are being filtered according to the criteria of user choice. Criteria are written down in language with simple syntax.
@@ -15,10 +15,10 @@ Don't be afraid though, filters are fairly intuitive and easy to use.
  \item[nullary] is expression that does not accepts other expressions. It accepts arguments specified later.
 \end{description}
 
-\subsection{Basics}
+\subsubsection{Basics}
 In fact you don't need to learn everything about filters in order to use them. In fact all you need to know to achieve decent productivity with OpenCS is inside basics section.
 
-\subsection{Interface}
+\subsubsection{Interface}
 Above each table there is a field that is used to enter filter: either predefined by the OpenMW developers or made by you, the user. You probably noticed it before. However there is also completely new element, although using familiar table layout. Go to the application menu view, and click filters. You should see set of default filters, made by the OpenMW team in the table with the following columns: filter, description and modified.
 
 \begin{description}
@@ -29,7 +29,7 @@ Above each table there is a field that is used to enter filter: either predefine
 \end{description}
 
 So let's learn how to actually use those to speed up your work.
-\subsection{Using predefined filters}
+\subsubsection{Using predefined filters}
 Using those filters is quite easy and involves typing inside the filter field above the table. For instance, try to open referencables table and type in the filters field the following: ``project::weapons''. As soon as you complete the text, table will magicly alter and will show only the weapons. As you could noticed project::weapons is nothing else than a ID of one of the predefined filters. That's it: in order to use the filter inside the table you simply type it's name inside the filter field.\\
 To make life easier filter IDs follow simple convention. 
 
@@ -83,7 +83,7 @@ As you would imagine the range can be specified as including a border value, or
 \end{itemize}
 
 \subsubsection{Logical expressions}
-This subsection takes care of two remaining groups of expressions: binary and unary. The only unary expression present in the OpenCS is logical not, while the remaining binary expressions are: or, and. This clearly makes theme from user point of view belonging to the same group of logical expressions.
+This subsection takes care of two remaining groups of expressions: binary and unary. The only unary expression present in the OpenCS is logical not, while the remaining binary expressions are: or, and. This clearly makes them (from the user point of view) belonging to the same group of logical expressions.
 
 \paragraph{not -- not expression()}
 Sometimes you may be in need of reversing the output of the expression. This is where not comes in handy. Adding not before expression will revert it: if expression was returning true, it will return false; if it was returning false, it will return true. Brackets are not needed: not will revert only the first expression following it.\\