Configure cargo-spellcheck to improve docs quality

.config/lingo.dic

@@ -0,0 +1,38 @@
+100
+async
+bitflags
+CoreAudio
+CSS
+Ctrl
+deserialize/DZ
+FFmpeg
+FreeType2
+GDI
+I420
+I444
+kilobits
+libobs
+luma
+mul
+Mul
+NV12
+OBS/M
+obws
+oneshot
+Qt/M
+RGBA
+RPC
+RTMP
+runtime
+serialize
+Sinus9
+sRGB
+struct/S
+timestamp
+TLS
+tokio
+UI
+URI
+username
+VLC
+YUV

.config/spellcheck.toml

@@ -0,0 +1,14 @@
+[Hunspell]
+lang = "en_US"
+search_dirs = ["."]
+extra_dictionaries = ["lingo.dic"]
+skip_os_lookups = true
+use_builtin = true
+
+[Hunspell.quirks]
+transform_regex = [
+    "^\\d+x\\d+$",
+    "v\\d+",
+    "\\+",
+    "\\=",
+]