update docs

Author: nix

docs/app/docs/user-guide/ofs-integration.md

@@ -77,6 +77,8 @@ The config files for nix version are stored in `~/.config/mtfg`.
 
 **At first lauch of the MTFG Extension nix need to build all dependencies for MTFG this may take several minutes! You may want to run `nix run github:michael-mueller-git/Python-Funscript-Editor --refresh` once before using the extension in OFS to see the current build process output.**
 
+Additional Hint: Every time i update the repository on github the start of the extension could take serveral seconds/minutes!
+
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 ## Troubleshot