basics: add register type summary

docs/neovim-basics/registers.md

@@ -8,7 +8,6 @@ The name of a register is a number, alphabetical or special character.
 
 `SPC f r` lists the values of registers in a telescope popup
 
-
 !!! EXAMPLE "Yank and paste commit message"
     Select the text of the commit message
 
@@ -18,8 +17,33 @@ The name of a register is a number, alphabetical or special character.
 
     ++double-quote++ ++"m"++ ++"p"++ pastes the register text into the commit message buffer
 
-## Special Registers
 
+## Registers
+
+!!! INFO "Neovim help - registers"
+    ```shell
+    :help registers
+    ```
+
+++double-quote++ the unnamed register, used by Neovim normal commands, e.g. `c` `d` `p` `s` `x` `y`, etc.
+
+++0++ to ++9++ numbered registers containing yank and delete history
+
+++minus++ small delete register for text smaller than a line
+
+++"a"++ to ++"z"++ named registers manually selected, ++"A"++ to ++"Z"++ to append to the text already in the register
+
+++colon++ ++period++ and ++"%"++ read-only registers use with put commands (last inserted, current file name, recent command)
+
+++"#"++ alternate buffer file name
+
+++equal++ expression register for the result of runing a Neovim command expression
+
+++plus++ and ++"*"++ selection registers for GUI
+
+++underscore++ black hole register does not store text, use when normal commands shouldnt update other registers
+
+++slash++ last search pattern register used
 
 
 ## Find Registers
@@ -28,3 +52,7 @@ The name of a register is a number, alphabetical or special character.
 
 ![AstroNvim Find Registers - telescope view](https://github.com/practicalli/graphic-design/blob/live/editors/neovim/screenshots/neovim-find-registers-telescope-popup-light.png?raw=true#only-light){loading=lazy}
 ![AstroNvim Find Registers - telescope view](https://github.com/practicalli/graphic-design/blob/live/editors/neovim/screenshots/neovim-find-registers-telescope-popup-dark.png?raw=true#only-dark){loading=lazy}
+
+
+!!! HINT "Registers in insert mode"
+    `C-r` in insert mode pastes the content of the given register, e.g. `C-r a` to paste the content of `"a`