Add mini-descriptions to the keywords

README.md

@@ -187,17 +187,17 @@ The following keywords are specified to execute an action.
 
 - [`let`](#let) initializes a new variable.
 - [`if`](#if) enters the scope once if the condition is met.
-- [`else`](#else)
+- [`else`](#else) enters the scope if the if before failed.
 - [`def`](#def) defines a new function.
 - [`while`](#while) functions like `if`, but enters the scope as long as the condition is met.
 - [`for`](#for) initializes a scope which will be ran a number of times specified after the `for`.
-- [`break`](#break)
-- [`continue`](#continue)
-- [`unwrap`](#unwrap)
-- [`some`](#some)
-- [`exists`](#exists)
-- [`empty`](#empty)
-- [`as`](#as)
+- [`break`](#break) breaks the loop prematurely.
+- [`continue`](#continue) skips the rest of the loop's body for a new iteration.
+- [`unwrap`](#unwrap) unwraps an optional-type variable.
+- [`some`](#some) wraps a variable into an optional.
+- [`exists`](#exists) tests weather an optional is not empty.
+- [`empty`](#empty) value to set in an optional variable.
+- [`as`](#as) casts the leftside value into the type on the rightside of this keyword.
 - [All operators](#operators) are also somewhat considered as keywords.
 
 #### `let`