The display text of an Obsidian Internal Link can be changed in the following ways:

• Wikilink Format: [[Three laws of motion|Display Text]]
• Markdown Format: [Display Text](Three%20laws%20of%20motion.md)

When in a table, the pipe character (|) used in the Wikilink format will have to be escaped with a backslash (\).

Sources:

• Linking notes and files (help.obsidian.md)
• Advanced formatting syntax (help.obsidian.md)