[index] add link to general model theory work

index.org

@@ -32,6 +32,7 @@ Futebol Clube]]. There may be other topics here too.
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 | [[https://masd-project.github.io/progen/index.html][Dogen]]                                  | Programming                             | Dogen is a code-generator I am developing as part of PhD.                                                 |
 | [[https://mcraveiro.github.io/cunene/][Cunene]]                                 | Programming                             | Cunene is my personal configuration for [[https://en.wikipedia.org/wiki/Emacs][Emacs]].                                                            |
+| [[https://mcraveiro.github.io/GeneralModelTheory/][General Model Theory]]                   | Philosophy                              | In my spare time, I am trying to translate Stachowiak's work to English.                                  |
 | [[file:devsites.org][Developer sites]]                        | Programming                             | I occasionally create questions and answers in developer sites.                                           |
 | [[file:bookmarks.org][Interesting]]                            | Various, Programming                    | Assorted bookmarks on stuff I bump into.                                                                  |
 | [[file:twitter.org][Twitter threads]]                        | Various                                 | Now I found out you can unroll them, started to create links to these.                                    |