Test Cases (#70)

* Create general.md

* Rename general.md to TCgeneral.md

* Create TCaccountmanager.md

* Create TCtabsAndSplits.md

* Create TCchatting.md

* Create TCemotes.md

* Create TCchannelNavigation.md

* Create TCusernameTabbing.md

* Create TChighlighting.md

* Create TCappearanceSettings.md

* Create TCchatWindowNavigation.md

* Create TCchatterinoFeatures.md

docs/tests/TChighlighting.md

@@ -0,0 +1,3 @@
+1. add highlight word (& get pinged)
+2. add user to highlight blacklist (& get NOT pinged by him)
+3. add custom ping sound (& get pinged)