Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "When you add a subgraph, you start with the subgraph keyword followed by the subgraph ID."

A block of code is set as follows:

flowchart LR
  subgraph Dolor
    Lorem --> Ipsum
  end

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

flowchart LR
      Lorem --> Ipsum
      click Lorem "http://www.google.com" "tooltop" _self

Any command-line input or output is written as follows:

$ npm install -g gatsby-cli

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "The quotes also make it possible to use keywords such as flowchart and end in the label text."

Tips or important notes

Appear like this.