EN, CZ : Fulltext mentioned in missing features near explanation

Author: VitSimon

cs/README.md

@@ -55,7 +55,7 @@ Může to být z několika důvodů:
 
 | Chybějící prvek | Proč? |
 |---|---|
-| 📖 / 📇 | Autor nápovědy nedefinoval potřebná data |
+| 📖 / 📇 / 🔎 | Autor nápovědy nedefinoval potřebná data |
 | 🔖 | Kapitola nemá podkapitoly |
 | ☰ | Levý panel je viditelný |
 | Levý panel | Schoval jste levý panel, klikněte na horním panelu na tlačítko ☰ a panel se znovu zobrazí |

en/README.md

@@ -55,7 +55,7 @@ There are several reasons why certain elements may not appear:
 
 | Missing icon or feature | Why? |
 |---|---|
-| 📖 / 📇 | These were not defined by the help file author |
+| 📖 / 📇 / 🔎 | These were not defined by the help file author |
 | 🔖 | The current chapter has no subchapters |
 | ☰ | The left panel is already visible |
 | Left panel | You closed the app with the panel hidden. Just click ☰ in the top bar to bring it back |