Update branch from master to main

Author: sdroege

.github/workflows/typos.yml

@@ -3,7 +3,7 @@ on:
   pull_request:
   push:
     branches:
-      - "master"
+      - "main"
 jobs:
   typos:
     name: Spell Check with Typos

_includes/projects.html

@@ -10,5 +10,5 @@
 {% endfor %}
 </ul>
 
-If you want your app to be added to this list, please create a [Pull Request](https://github.com/gtk-rs/gtk-rs.github.io/edit/master/_data/projects.json) for it.
+If you want your app to be added to this list, please create a [Pull Request](https://github.com/gtk-rs/gtk-rs.github.io/edit/main/_data/projects.json) for it.
 </details>

_posts/2019-02-21-new-release.md

@@ -24,7 +24,7 @@ Let's see those in details.
 
 #### Atk
 
-The Atk crate is about accessibility. We thought it was a miss not having it considering how important accessibility is. Now it's fixed! You can find more information directly on the [`Atk` repository](https://github.com/gtk-rs/atk) or in the [accessibility example](https://github.com/gtk-rs/examples/blob/master/src/bin/accessibility.rs).
+The Atk crate is about accessibility. We thought it was a miss not having it considering how important accessibility is. Now it's fixed! You can find more information directly on the [`Atk` repository](https://github.com/gtk-rs/atk) or in the [accessibility example](https://github.com/gtk-rs/examples/blob/main/src/bin/accessibility.rs).
 
 #### Callbacks?
 
@@ -102,7 +102,7 @@ We moved it to `1.31.0` mainly because imports handling is much easier starting
 
 #### subclassing support in GLib
 
-This is a strongly asked feature and we now have it in GLib. A lot of work remains to be done, but it's mostly polishing. At its current state, it can be used already. Take a look at the [listbox_model](https://github.com/gtk-rs/examples/blob/master/src/bin/listbox_model.rs) if you want to see how it works.
+This is a strongly asked feature and we now have it in GLib. A lot of work remains to be done, but it's mostly polishing. At its current state, it can be used already. Take a look at the [listbox_model](https://github.com/gtk-rs/examples/blob/main/src/bin/listbox_model.rs) if you want to see how it works.
 
 #### Even more bindings generated
 

_posts/2019-12-15-new-release.md

@@ -43,9 +43,9 @@ passed into the `clicked` signal handler. See also the `Rc` documentation about
 The "subclass" cargo feature was removed from all crates and is instead enabled by default with
 this release. The GObject subclassing support matured a lot over the last months and is ready for
 wider usage. A basic example for subclassing `gtk::Application` and `gtk::ApplicationWindow` can
-be found [here](https://github.com/gtk-rs/examples/blob/master/src/bin/basic_subclass.rs), another
+be found [here](https://github.com/gtk-rs/examples/blob/main/src/bin/basic_subclass.rs), another
 example using custom `glib::Object` subclasses as part of a `gtk::ListBox` model can be found
-[here](https://github.com/gtk-rs/examples/blob/master/src/bin/listbox_model.rs) and various examples
+[here](https://github.com/gtk-rs/examples/blob/main/src/bin/listbox_model.rs) and various examples
 for creating GStreamer elements [here](https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs).
 
 While there are still subclassing bindings missing for many types, various basic types in the `gio`,
@@ -69,7 +69,7 @@ way that looks close to the equivalent synchronous code. Check
 Rust blog for more details.
 
 An example making use of this with `gio`'s asynchronous file reading support can be found
-[here](https://github.com/gtk-rs/examples/blob/master/src/bin/gio_futures_await.rs). While it is
+[here](https://github.com/gtk-rs/examples/blob/main/src/bin/gio_futures_await.rs). While it is
 not as streamlined as with native Rust crates like [async-std](https://async.rs) or
 [tokio](https://tokio.rs) because of how the `gio` API works, it nonetheless much more convenient
 to work with than the previous (but still available) callback-based approach.

faq.md

@@ -21,8 +21,8 @@ Currently we only add crates to the gtk-rs project that are required for the exi
 
 You can find more examples in the corresponding repositories
 
-- [gtk-rs-core/examples](https://github.com/gtk-rs/gtk-rs-core/tree/master/examples)
-- [gtk4-rs/examples](https://github.com/gtk-rs/gtk4-rs/tree/master/examples)
+- [gtk-rs-core/examples](https://github.com/gtk-rs/gtk-rs-core/tree/main/examples)
+- [gtk4-rs/examples](https://github.com/gtk-rs/gtk4-rs/tree/main/examples)
 
 or have a look at the source code of the projects listed on our [start page](/#projects-using-gtk-rs).