Added option to remove the section numbers in the title

README.md

@@ -9,6 +9,7 @@ This theme provides some settings you can tweak:
 - Language: Possible values are `english` or `german`. This changes the value passed to babel and csquotes. If none of both is selected, `german` is used.
 - Extra slides: For each section and subsection an extra slide containing the title can be inserted. This is controlled by passing `secslide` or/and `subsecslide`. The absence of `secslide` indicates that you don't want an extra slide for every section. Analog for `subsecslide`.
 - Automatic toc: A table of contents is automatically inserted with the `\maketitle` command (After the title slide). If you want to disable this behavior, you have to set the `notoc` option.
+- Section numbers in frame title: Each frage contains the current section (and subsection) number in its title. To disable this, you have to pass the `nonumbersinframetitle` option. If you disable section numbers in the title, and you use use the `wide` environment inside a frame, it can look weird when the title is shifted to the right, but the content is not. To cope with this, you can pass the `wide` option to the frame. This will also shift the title to the left.
 
 If you wanna set one (or more) of those values, you have to pass it to `\usetheme`. Look at ![example.tex](https://github.com/LukasPietzschmann/awesome-beamer/blob/master/example.tex) for, well, an example.