fix typos

docs/modules/ROOT/pages/key-concepts.adoc

@@ -22,7 +22,7 @@ For example, a sidebar block is a block element, so it shares the traits of all
 
 Elements include the document itself, sections, blocks, block macros, breaks, and inline phrases and macros.
 
-A [.term]*block element* that is stacked vertically (by line) above or below other block elements.
+A [.term]*block element* is stacked vertically (by line) above or below other block elements.
 Block elements are typically referred to simply as [.term]*blocks*.
 Blocks form the main tree structure of the document.
 
@@ -33,7 +33,7 @@ Inline elements are less structured than block elements as they are more geared
 
 == Attributes
 
-An attribute is a name/value pairs used for storing metadata in the AsciiDoc language.
+An attribute is a name/value pair used for storing metadata in the AsciiDoc language.
 Attributes can be used to influence the syntax, control behavior, customize styles, activate or configure integrations, or store replacement content.
 Attributes truly set AsciiDoc apart from other lightweight markup languages.
 
@@ -43,7 +43,7 @@ There are two concrete classifications of attributes: document attributes and el
 === Document attributes
 
 Document attributes, as the name implies, are associated directly with the document.
-They are used to export information about the document and runtime, control behavior of the processor, and to store reusable values or phrases.
+They are used to export information about the document at runtime, control behavior of the processor, and to store reusable values or phrases.
 Thus, they are a sort of two-way communication channel with the processor.
 
 Document attributes can be referenced in the content using an attribute reference (whereever the attribute substitution is enabled).

docs/modules/ROOT/pages/syntax-quick-reference.adoc

@@ -323,7 +323,7 @@ include::lists:example$unordered.adoc[tag=qr-base]
 include::lists:example$unordered.adoc[tag=qr-base]
 ====
 
-TIP: A blank line is required before and after a list to separated it from other blocks.
+TIP: A blank line is required before and after a list to separate it from other blocks.
 You can force two adjacent lists apart by adding a blank attribute list (i.e., `[]`) above the second list or by inserting a blank line followed by a line comment after the first list.
 If you use a line comment, the convention is to use `//-` to provide a hint to other authors that it's serving as a list divider.
 

docs/modules/attributes/pages/attribute-entries.adoc

@@ -46,7 +46,7 @@ If you set a built-in attribute and leave its value blank, Asciidoctor assigns t
 == Where can I use an attribute entry?
 
 An attribute entry is typically defined in the document header.
-When set it the document header, the attribute is available to the entire document until it is reset or unset.
+When set in the document header, the attribute is available to the entire document until it is reset or unset.
 The attribute's value can be reassigned or the attribute unset at any subsequent point in the document, unless the attribute is locked (typically by defining it using the CLI or API).
 
 Many, but not all, document attributes can be set, assigned a value, or unset in the document's body (anywhere below the document header).

docs/modules/blocks/pages/index.adoc

@@ -29,7 +29,7 @@ For example, consider the following normal section:
 
 The context of this block is `section`.
 The writer does not have to do anything to specify the context in this case as it's implied by the syntax.
-We often just say that this is section block, using the context as an adjective to describe the block.
+We often just say that this is a section block, using the context as an adjective to describe the block.
 
 The context dictates the content model.
 The content model determines how the content inside of the block is processed.

docs/modules/macros/pages/image-svg.adoc

@@ -3,7 +3,7 @@
 :url-svgo: https://github.com/svg/svgo
 
 Both block and inline image macros have built-in support for scalable vector graphics (SVGs).
-But there's more than one way to include an SVG into a web page, and the strategy used can effect how the SVG behaves (or misbehaves).
+But there's more than one way to include an SVG into a web page, and the strategy used can affect how the SVG behaves (or misbehaves).
 Therefore, these macros provide additional options to control how the SVG is included (i.e., referenced).
 
 == Options for SVG images