Typo in deisotoper help
<h2>Description</h2>
<p>
-This module attepts to find those peaks in a peak list, which form an isotope pattern.
+This module attempts to find those peaks in a peak list, which form an isotope pattern.
When isotope pattern is found, the information about the charge and isotope ratios is saved, and additional isotopic peaks are removed from the peak list.
Only the highest isotope is kept.
</p>
