Fix typos

day_0/intro_presentation_nix.tex

@@ -243,7 +243,7 @@
         \begin{column}{5.5cm}
         \includegraphics[width=4cm]{resources/neo_logo_transparent.png}
             \begin{itemize}
-                \item interfaces to 40+ ephys properietary \& open formats in various versions
+                \item interfaces to 40+ ephys proprietary \& open formats in various versions
                 \vspace{1ex}
                 \item provides a standardized ephys data \textbf{representation}, it is not a file format.
                 \item reads all formats, but provides writing capability only for selected open formats.