doc: move descriptions

specification/daleth.md

@@ -1 +1,5 @@
 # Daleth specification for Dalet v1.0-preview
+
+## Daleth
+
+Daleth is level language for humans. It can be compiled into daletl, but daletl cannot be decompiled into daleth[^1]. It is only used for page creation by humans.

specification/main.md

@@ -2,28 +2,18 @@
 
 **Dalet** is a system through which it is possible to combine human readable markup language and small size of transmitted data. The system is divided into two stages and two languages.
 
-## Specification
+## Specifications
 
 - [Tags](./tags.md)
 - [Daletl](./daletl.md)
 - [Daleth](./daleth.md)
 - [DaletPack](./daletpack.md)
 
-## Languages
-
-### Daleth
-
-**Daleth** is a high-level language for humans. It can be compiled into daletl, but daletl cannot be decompiled into daleth[^1]. It is only used for page creation by humans.
-
-### Daletl
-
-**Daletl** is a low-level language for machines. It is used in data transmission, processing and generation. It is specifically optimized to transfer as little data as possible using DaletPack.
-
 ## Stages
 
 ### Stage 1 (optional)
 
-In the first stage, the daleth language is parsed and converted to daletl. All tags becomes an array of properties `[tag_id, body, argument]`, so that they take up less space in the transmitted data, for example. **This stage is not for data transmission**.
+In the first stage, the daleth language is parsed and converted to daletl.  **This stage is not for data transmission**.
 
 ### Stage 2