Fix a handful of grammar errors and typos

Author: ethanhawksley

book/aliases.md

@@ -63,7 +63,7 @@ displaying all listed files and folders in a grid.
 ## Replacing Existing Commands Using Aliases
 
 ::: warning Caution!
-When replacing commands it is best to "back up" the command first and avoid recursion error.
+When replacing commands it is best to "back up" the command first and avoid a recursion error.
 :::
 
 How to back up a command like `ls`:

book/background_jobs.md

@@ -9,7 +9,7 @@ Nushell currently has experimental support for thread-based background jobs.
 
 ## Spawning Jobs
 
-Jobs can be can be spawned using [`job spawn`](/commands/docs/job_spawn.md), which receives a closure and starts its execution in a background thread, returning
+Jobs can be spawned using [`job spawn`](/commands/docs/job_spawn.md), which receives a closure and starts its execution in a background thread, returning
 an unique integer id for the spawned job:
 
 ```nu

book/coloring_and_theming.md

@@ -575,7 +575,7 @@ $env.config.table.mode: rounded # ascii_rounded, basic, basic_compact, compact,
 $env.config.use_ansi_coloring: true
 ```
 
-if you want to go full-tilt on theming, you'll want to theme all the items I mentioned at the very beginning, including LS_COLORS, and the prompt. Good luck!
+If you want to go full-tilt on theming, you'll want to theme all the items I mentioned at the very beginning, including LS_COLORS, and the prompt. Good luck!
 
 ### Working on Light Background Terminal
 

book/explore.md

@@ -25,9 +25,9 @@ So the main point of [`explore`](/commands/docs/explore.md) is `:table` (Which y
 
 You can interact with it via `<Left>`, `<Right>`, `<Up>`, `<Down>` _arrow keys_. It also supports the `Vim` keybindings `<h>`, `<j>`, `<k>`, and `<l>`, `<Ctrl-f>` and `<Ctrl-b>`, and it supports the `Emacs` keybindings `<Ctrl-v>`, `<Alt-v>`, `<Ctrl-p>`, and `<Ctrl-n>`.
 
-You can inspect a underlying values by entering into cursor mode. You can press either `<i>` or `<Enter>` to do so.
+You can inspect underlying values by entering into cursor mode. You can press either `<i>` or `<Enter>` to do so.
 Then using _arrow keys_ you can choose a necessary cell.
-And you'll be able to see it's underlying structure.
+And you'll be able to see its underlying structure.
 
 You can obtain more information about the various aspects of it by `:help`.
 

book/quick_tour.md

@@ -136,7 +136,7 @@ The [`describe` command](/commands/docs/describe.md) can be used to display the
 
 ## Command Arguments in a Pipeline
 
-Sometimes, a command takes an _argument_ instead of pipeline _input_. For this scenario, Nushell provides the [`$in` variable](./pipelines.md#pipeline-input-and-the-special-in-variable) that let's you use the previous command's output in variable-form. For example:
+Sometimes, a command takes an _argument_ instead of pipeline _input_. For this scenario, Nushell provides the [`$in` variable](./pipelines.md#pipeline-input-and-the-special-in-variable) that lets you use the previous command's output in variable-form. For example:
 
 ```nu:line-numbers
 ls

book/testing.md

@@ -47,7 +47,7 @@ Error:
 
 There are many assert commands, which behave exactly as the base one with the proper operator. The additional value for them is the ability for better error messages.
 
-For example this is not so helpful without additional message:
+For example this is not so helpful without an additional message:
 
 ```nu
 let a = "foo"

book/working_with_strings.md

@@ -32,7 +32,7 @@ Single-quoted strings don't do anything to the text they're given, making them i
 
 ## Double-quoted Strings
 
-For more complex strings, Nushell also offers double-quoted strings. These strings use the `"` character to surround text. They also support the ability escape characters inside the text using the `\` character.
+For more complex strings, Nushell also offers double-quoted strings. These strings use the `"` character to surround text. They also support the ability to escape characters inside the text using the `\` character.
 
 For example, we could write the text hello followed by a new line and then world, using escape characters and a double-quoted string: