fix: use absolute URLs for logo image in README files

Marketplaces (VS Marketplace, Open VSX) cannot resolve relative paths in
README files. Replace the relative asset path for the AI Engineering Fluency
logo with an absolute raw.githubusercontent.com URL so it loads correctly on
both marketplace pages.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: rajbos

README.md

@@ -1,6 +1,6 @@
 # GitHub Copilot Token Tracker
 
-![AI Engineering Fluency](assets/AI%20Engineering%20Fluency%20-%20Transparent.png)
+![AI Engineering Fluency](https://raw.githubusercontent.com/rajbos/github-copilot-token-usage/main/assets/AI%20Engineering%20Fluency%20-%20Transparent.png)
 
 Track your GitHub Copilot token usage and AI Fluency across VS Code, Visual Studio, and the command line. All data is read from local session logs — nothing leaves your machine unless you opt in to cloud sync.
 

vscode-extension/README.md

@@ -1,6 +1,6 @@
 # AI Engineering Fluency — VS Code Extension
 
-![AI Engineering Fluency](../assets/AI%20Engineering%20Fluency%20-%20Transparent.png)
+![AI Engineering Fluency](https://raw.githubusercontent.com/rajbos/github-copilot-token-usage/main/assets/AI%20Engineering%20Fluency%20-%20Transparent.png)
 
 Track your AI Engineering Fluency — daily and monthly token usage, cost estimates, and productivity insights directly inside VS Code. Reads local session logs and displays today's and monthly usage in the status bar, with rich detail views and optional cloud sync.