FAQ.md

@@ -37,5 +37,5 @@
     * You must run the shell you are using as administrator.
 * **I changed the pypsa-eur config.json to new countries/timespan etc. but my output does not change.**
     * In pypsa-eur, there are several files, which must be changed, when changing the config. To make sure, everything is updated to your change, delete all files in networks, resources and results.
-* **When executing pypsa-eur I get an error because of a package.**
+* **When executing pypsa-eur, I get an error because of a package.**
     * There might be a problem with the package itself or the package has been updated and it doesn't work with pypsa-eur, yet. E.g. there is a known issue with ipopt which throws the error message *"Could not locate the 'ipopt' executable, which is required for solver ipopt"* (22.12.2020, https://github.com/conda-forge/ipopt-feedstock/issues/55). To solve this you should remove the current package version (e.g. `conda remove ipopt`) and install an older version that is known to work (e.g. `conda install -c conda-forge ipopt=3.11.1`).
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