Update README.md

Document formatting

README.md

@@ -2,34 +2,36 @@
 Visual shader node library for Godot engine.
 
 Adds various extra nodes to use in built-in visual shader editor.
-## Installation
+# Installation
 Copy the contents of **_addons/ShaderLib_** into the same folder in your project. No activation needed. Custom visual shader nodes work the same way as standard visual shader nodes.
-## Uninstallation
+# Uninstallation
 Delete the contents of **_addons/ShaderLib_** folder from your project. Make sure to delete it using the Godot editor instead of your default file system program.
-## Nodes documentation
-### Procedural nodes
-___
+# Nodes documentation
 <details>
-<summary>#### Voronoi node</summary>
+<summary><h1>Procedural nodes</h1></summary>
+<details>
+<summary><h3>Voronoi node</h3></summary>
 Generates a Voronoi or Worley noise based on input UV. Voronoi noise is generated by calculating distances between a pixel and a lattice of points. By offsetting these points by a pseudo-random number, controlled by **_angle offset_**, a cluster of cells can be generated.
-
+  
 **Inputs**
 |Name|Type|Binding|Description|
 |---|---|---|---|
 |uv|vec2|UV|Input UV value|
 |cell density|float|none|Density of generated cells|
 |angle offset|float|none|Offset values for points|
-
+  
 **Outputs**
 |Name|Type|Binding|Description|
 |---|---|---|---|
 |output|float|None|Output noise value|
 |cells|float|None|Raw cell data|
+___
 </details>
-___
-### UV nodes
-___
-#### Flipbook node
+</details>
+<details>
+<summary><h1>UV nodes</h1></summary>
+<details>
+<summary><h3>Flipbook node</h3></summary>
 Creates a flipbook, or texture sheet animation, of the UVs supplied to input UV. The amount of tiles on the sheet are defined by the values of the inputs **_rows_** and **_columns_**.
 This node can be used to create a texture animation functionality, commonly used for particle effects and sprites, by supplying Time to the input Tile and outputting to the UV input slot of a Texture Sampler.
 
@@ -48,7 +50,9 @@ This node can be used to create a texture animation functionality, commonly used
 |---|---|---|---|
 |uv|vec2|None|Output UV value|
 ___
-#### Radial Shear node
+</details>
+<details>
+<summary><h3>Radial Shear node</h3></summary>
 Applies a radial shear warping effect similar to a wave to the value of input UV.
 
 **Inputs**
@@ -64,7 +68,9 @@ Applies a radial shear warping effect similar to a wave to the value of input UV
 |---|---|---|---|
 |uv|vec2|None|Output UV value|
 ___
-#### Rotate node
+</details>
+<details>
+<summary><h3>Rotate node</h3></summary>
 Rotates value of input UV around a reference point defined by input **_center_** by the amount of input **_rotation_**.
 
 **Inputs**
@@ -80,7 +86,9 @@ Rotates value of input UV around a reference point defined by input **_center_**
 |---|---|---|---|
 |uv|vec2|None|Output UV value|
 ___
-#### Spherize node
+</details>
+<details>
+<summary><h3>Spherize node</h3></summary>
 Applies a spherical warping effect similar to a fisheye camera lens to the value of input UV.
 
 **Inputs**
@@ -96,7 +104,9 @@ Applies a spherical warping effect similar to a fisheye camera lens to the value
 |---|---|---|---|
 |uv|vec2|None|Output UV value|
 ___
-#### Tiling and Offset node
+</details>
+<details>
+<summary><h3>Tiling and Offset node</h3></summary>
 Tiles and offsets the value of input UV by the inputs **_tiling_** and **_offset_** respectively. This is commonly used for detail maps and scrolling textures over TIME.
 
 **Inputs**
@@ -111,7 +121,9 @@ Tiles and offsets the value of input UV by the inputs **_tiling_** and **_offset
 |---|---|---|---|
 |uv|vec2|None|Output UV value|
 ___
-#### Twirl node
+</details>
+<details>
+<summary><h3>Twirl node</h3></summary>
 Applies a twirl warping effect similar to a black hole to the value of input UV.
 
 **Inputs**
@@ -127,3 +139,5 @@ Applies a twirl warping effect similar to a black hole to the value of input UV.
 |---|---|---|---|
 |uv|vec2|None|Output UV value|
 ___
+</details>
+</details>