Fix old blog post HTML issues

Author: GuillaumeGomez

_posts/2017-11-26-new-release.md

@@ -161,15 +161,15 @@ For the interested ones, here is the list of the (major) changes:
  * [Minor AnyValue improvements](https://github.com/gtk-rs/glib/pull/258)
  * [Implement AnyValue, a wrapper around std::any::Any](https://github.com/gtk-rs/glib/pull/252)
  * [Implement SendValue and make Value not implement Send](https://github.com/gtk-rs/glib/pull/256)
- * [Mark the IsA<_> trait unsafe](https://github.com/gtk-rs/glib/pull/257)
+ * [Mark the IsA&lt;_&gt; trait unsafe](https://github.com/gtk-rs/glib/pull/257)
  * [Don't implement DerefMut on TypedValue](https://github.com/gtk-rs/glib/pull/255)
  * [Useless version bumping to help @meh](https://github.com/gtk-rs/glib/pull/245)
  * [Allow specifying class struct to glib_wrapper!() macro](https://github.com/gtk-rs/glib/pull/234)
  * [Some fixes in the Signals handling](https://github.com/gtk-rs/glib/pull/240)
  * [Value usage improvements](https://github.com/gtk-rs/glib/pull/238)
  * [Dox](https://github.com/gtk-rs/glib/pull/237)
  * [Use a newtype wrapper around the signal handler IDs](https://github.com/gtk-rs/glib/pull/231)
- * [Implement FromGlibPtrBorrow for Option<FromGlibPtrBorrow>](https://github.com/gtk-rs/glib/pull/232)
+ * [Implement FromGlibPtrBorrow for Option&lt;FromGlibPtrBorrow&gt;](https://github.com/gtk-rs/glib/pull/232)
  * [Add version for Sha384](https://github.com/gtk-rs/glib/pull/227)
  * [For the CallbackGuard, print something to stderr and use abort() inst…](https://github.com/gtk-rs/glib/pull/225)
  * [Fix versioning](https://github.com/gtk-rs/glib/pull/221)
@@ -288,7 +288,7 @@ For the interested ones, here is the list of the (major) changes:
  * [Apply last gir](https://github.com/gtk-rs/gdk/pull/130)
  * [Add getter for 'button' property of GdkEventButton](https://github.com/gtk-rs/gdk/pull/128)
  * [WindowAttr](https://github.com/gtk-rs/gdk/pull/127)
- * [Implement From<&str> on Atom](https://github.com/gtk-rs/gdk/pull/125)
+ * [Implement From&lt;&str&gt; on Atom](https://github.com/gtk-rs/gdk/pull/125)
  * [Update sys crates version](https://github.com/gtk-rs/gdk/pull/124)
  * [Update authors](https://github.com/gtk-rs/gdk/pull/123)
  * [Update version](https://github.com/gtk-rs/gdk/pull/122)
@@ -357,7 +357,7 @@ For the interested ones, here is the list of the (major) changes:
  * [Generate IconSet](https://github.com/gtk-rs/gtk/pull/530)
  * [Update to bitflags 0.9](https://github.com/gtk-rs/gtk/pull/528)
  * [Update lgpl dependency version](https://github.com/gtk-rs/gtk/pull/527)
- * [Change gtk::Application::new parameter to use Into<Option<&str>>](https://github.com/gtk-rs/gtk/pull/525)
+ * [Change gtk::Application::new parameter to use Into&lt;Option&lt;&str&gt;&gt;](https://github.com/gtk-rs/gtk/pull/525)
  * [Use glib::BoolError for gtk::init() and gtk::Application::new()](https://github.com/gtk-rs/gtk/pull/523)
  * [Update lgpl version](https://github.com/gtk-rs/gtk/pull/522)
  * [Update release_process.md](https://github.com/gtk-rs/gtk/pull/521)

_posts/2018-03-17-new-release.md

@@ -59,7 +59,7 @@ For the interested ones, here is the list of the (major) changes:
  * [Const override](https://github.com/gtk-rs/glib/pull/278)
  * [Char wrapper 2](https://github.com/gtk-rs/glib/pull/274)
  * [Allow FnOnce for MainContext::invoke()](https://github.com/gtk-rs/glib/pull/277)
- * [Allow creating Bytes from any AsRef<[u8]> by copying or taking ownership of it](https://github.com/gtk-rs/glib/pull/276)
+ * [Allow creating Bytes from any AsRef&lt;[u8]&gt; by copying or taking ownership of it](https://github.com/gtk-rs/glib/pull/276)
  * [Add bindings for g_file_test() and make use of it in the Path transla…](https://github.com/gtk-rs/glib/pull/273)
  * [Add Char wrapper; implement KeyFile::set_list_separator() with it](https://github.com/gtk-rs/glib/pull/248)
  * [Don't call g_value_unset() on zeroed GValues](https://github.com/gtk-rs/glib/pull/272)
@@ -68,7 +68,7 @@ For the interested ones, here is the list of the (major) changes:
  * [Various Path FFI improvements](https://github.com/gtk-rs/glib/pull/269)
  * [bump lazy_static to 1.0](https://github.com/gtk-rs/glib/pull/268)
  * [Add Value::from_type() to initialize an empty value from a Type](https://github.com/gtk-rs/glib/pull/266)
- * [Implement Value traits for Vec<String> more consistently](https://github.com/gtk-rs/glib/pull/264)
+ * [Implement Value traits for Vec&lt;String&gt; more consistently](https://github.com/gtk-rs/glib/pull/264)
  * [Add ToGlibContainerFromSlice impls for *const GList / GSList](https://github.com/gtk-rs/glib/pull/261)
 
 [gio](https://github.com/gtk-rs/gio):
@@ -96,7 +96,7 @@ For the interested ones, here is the list of the (major) changes:
 
 [pango](https://github.com/gtk-rs/pango):
 
- * [Remove manual FromGlibPtrNone<*const  implementations](https://github.com/gtk-rs/pango/pull/101)
+ * [Remove manual FromGlibPtrNone&lt;*const&gt; implementations](https://github.com/gtk-rs/pango/pull/101)
 
 [gdk-pixbuf](https://github.com/gtk-rs/gdk-pixbuf):