FAQ.md

 # General
-* **I get a missing rule exceptiopn from snakemake, although I try to use an existing rule.**
+* **I get a missing rule exception from snakemake, although I try to use an existing rule.**
     * If you are using windows, you have to add the option --keep-target-files for snakemake.
     * Try using slahes (/) instead of backslahes (\\).
 * **I want to calculate something new with snakemake, but it tells me "nothing to be done".**