Update cargo_features.md (#1939)

This adds missing features to the cargo_features.md file.

closes #1391

docs/cargo_features.md

@@ -20,11 +20,18 @@
 
 |feature name|description|
 |-|-|
+|dynamic|Forces bevy to be dynamically linked, which improves iterative compile times.|
 |trace|Enables system tracing (useful in tandem with a feature like trace_chrome).|
 |trace_chrome|Enables [tracing-chrome](https://github.com/thoren-d/tracing-chrome) as bevy_log output. This allows you to visualize system execution.|
 |wgpu_trace|For tracing wgpu.|
+|dds|DDS picture format support.|
+|tga|TGA picture format support.|
+|jpeg|JPEG picture format support.|
+|bmp|BMP picture format support.|
 |flac|FLAC audio format support. It's included in bevy_audio feature.|
 |wav|WAV audio format support.|
 |vorbis|Vorbis audio format support.|
+|serialize|Enables serialization of `bevy_input` types.|
 |wayland|Enable this to use Wayland display server protocol other than X11.|
 |subpixel_glyph_atlas|Enable this to cache glyphs using subpixel accuracy. This increases texture memory usage as each position requires a separate sprite in the glyph atlas, but provide more accurate character spacing.|
+|bevy_ci_testing|Used for running examples in CI.|