fixed some spelling

rules/game_process.tex

@@ -75,9 +75,9 @@ \subsection{Robot States}
   \label{fig:robot_states}
 \end{figure}
 
-The referee will announce the transition from the \texttt{initial} to \texttt{ready} state by raising both hands over its head. The referee will wear red gloves \footnote{Teams are encouraged to not rely on the red gloves as they could be removed in a following years.}.
+The referee will announce the transition from the \texttt{initial} to \texttt{ready} state by raising both hands over its head. The referee will wear red gloves \footnote{Teams are encouraged to not rely on the red gloves as they could be removed in a following year.}.
 The referee must stand on the opposite side of the technical area behind the touchline and at the height of the halfway line. 
-The signal must be hold for \qty{\VisualSignalTime}{\second}. 
+The signal must be held for \qty{\VisualSignalTime}{\second}. 
 The GameController signal for the transition from \texttt{initial} to \texttt{ready} will be delayed by \qty{\SetDelayTimeChampion}{\second} for Champions Cup and by \qty{\SetDelayTimeChallenge}{\second} for Challenge Shield. 
 
 
@@ -142,7 +142,7 @@ \subsubsection{Indirect Kick - Champions Cup}
     A deliberate play at the ball includes successfully kicking the ball, dribbling the ball or the goalkeeper playing at the ball with its hands.
   \item If an indirect free kick is kicked directly into the opponent's goal, the goal does not count and a \texttt{Goal kick} is awarded.
   \item Note that an own-goal may always be scored without requiring an indirect kick.
-  \item A direct kick is allowed for the duration of the penalty kick, but this rule still applies after this kick. A contact in the penalty kick count among this rule.  
+  \item A direct kick is allowed for the duration of the penalty kick, but this rule still applies after this kick. A contact in the penalty kick counts among this rule.  
 \end{itemize}
 
 \begin{description}

rules/setup_environment.tex

@@ -106,8 +106,7 @@ \subsection{Lighting Conditions}
 SPL fields should be placed near or under windows where possible.
 Whether window lighting is used or not, ceiling lights should be provided as necessary to ensure that most of the field is never darker than 300 Lux (400 Lux preferred).
 
-Natural and non-natural light must be free to reach the field.
-Technical committee can delimit a zone near the field where human must not stand and where any items blocking the light sources are forbidden. 
+Natural and non-natural light must be free to reach the field. The technical committee can delimit a zone near the field where humans must not stand and where any items blocking the light sources are forbidden. 
 
 \subsection{Venue Setup}
 \label{sec:boundaries}