Fix doc typos (zed-industries#41727)

Release Notes:

- N/A

Author: hokein

docs/src/extensions/icon-themes.md

@@ -11,7 +11,7 @@ The [Material Icon Theme](https://github.com/zed-extensions/material-icon-theme)
 There are two important directories for an icon theme extension:
 
 - `icon_themes`: This directory will contain one or more JSON files containing the icon theme definitions.
-- `icons`: This directory contains the icons assets that will be distributed with the extension. You can created subdirectories in this directory, if so desired.
+- `icons`: This directory contains the icon assets that will be distributed with the extension. You can created subdirectories in this directory, if so desired.
 
 Each icon theme file should adhere to the JSON schema specified at [`https://zed.dev/schema/icon_themes/v0.3.0.json`](https://zed.dev/schema/icon_themes/v0.3.0.json).
 

docs/src/extensions/languages.md

@@ -324,7 +324,7 @@ This query marks number and string values in key-value pairs and arrays for reda
 
 The `runnables.scm` file defines rules for detecting runnable code.
 
-Here's an example from an `runnables.scm` file for JSON:
+Here's an example from a `runnables.scm` file for JSON:
 
 ```scheme
 (

docs/src/languages/rego.md

@@ -7,7 +7,7 @@ Rego language support in Zed is provided by the community-maintained [Rego exten
 
 ## Installation
 
-The extensions is largely based on the [Regal](https://docs.styra.com/regal/language-server) language server which should be installed to make use of the extension. Read the [getting started](https://docs.styra.com/regal#getting-started) instructions for more information.
+The extension is largely based on the [Regal](https://docs.styra.com/regal/language-server) language server which should be installed to make use of the extension. Read the [getting started](https://docs.styra.com/regal#getting-started) instructions for more information.
 
 ## Configuration
 

docs/src/snippets.md

@@ -1,6 +1,6 @@
 # Snippets
 
-Use the {#action snippets::ConfigureSnippets} action to create a new snippets file or edit a existing snippets file for a specified [scope](#scopes).
+Use the {#action snippets::ConfigureSnippets} action to create a new snippets file or edit an existing snippets file for a specified [scope](#scopes).
 
 The snippets are located in `~/.config/zed/snippets` directory to which you can navigate to with the {#action snippets::OpenFolder} action.
 

docs/src/visual-customization.md

@@ -6,7 +6,7 @@ See [Configuring Zed](./configuring-zed.md) for additional information and other
 
 ## Themes
 
-Use may install zed extensions providing [Themes](./themes.md) and [Icon Themes](./icon-themes.md) via {#action zed::Extensions} from the command palette or menu.
+User may install zed extensions providing [Themes](./themes.md) and [Icon Themes](./icon-themes.md) via {#action zed::Extensions} from the command palette or menu.
 
 You can preview/choose amongst your installed themes and icon themes with {#action theme_selector::Toggle} ({#kb theme_selector::Toggle}) and ({#action icon_theme_selector::Toggle}) which will modify the following settings: