GitHub Text Search is a free Chrome add-on developed by alessandro.pischedda that enhances the functionality of GitHub repo pages by adding a convenient search text bar. This add-on allows users to easily search for specific text within the repository page, making it easier to find relevant information or code snippets.

One of the main features of GitHub Text Search is its ability to highlight matches on corresponding files. This makes it even easier for users to quickly identify and navigate to the specific sections or lines of code they are looking for. However, it's important to note that due to limitations with the GitHub API, this add-on does not currently support fork project pages and only works on the master branch.

To navigate through the matches, GitHub Text Search provides keyboard shortcuts. For Mac users, the shortcuts are shift + Right Arrow to move to the next match and shift + Left Arrow to move to the previous match. For other operating systems, the shortcuts are ctrl + Right Arrow and ctrl + Left Arrow, respectively.

With GitHub Text Search, users can now search for specific text within GitHub repo pages with ease, improving their productivity and efficiency when working with GitHub repositories.