Bug 1390037 - Create readme file; r?rickychien
MozReview-Commit-ID: GTgvZeYgbtM
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+# Network Monitor
+
+The Network Monitor (netmonitor) can be connected with various back-ends:
+
+* Firefox
+* Chrome
+* NodeJS (planned)
+
+Implementation of particular connectors is located in:
+`mozilla-central/devtools/client/netmonitor/src/connector`
+
+[create a bug report](https://bugzilla.mozilla.org/enter_bug.cgi?product=Firefox&component=Developer%20Tools%3A%20Netmonitor)
+in case of any issues.
+
+See instructions describing how to connect supported back-ends.
+
+## Firefox
+Connecting to Firefox browser.
+
+Navigate to the `mozilla-central/devtools/client/netmonitor` folder with your terminal.
+Then run the following commands:
+
+```bash
+# Install packages
+yarn install
+
+# Run a dev server instance (for hosting netmonitor on browser)
+yarn start
+
+# Run Firefox (with port 6080 opened for connections)
+firefox http://localhost:8000 --start-debugger-server 6080
+```
+
+Finally, load `http://localhost:8000` page in your favorite browser
+(might be the same browser instance you are connecting to)
+
+Read more detailed instructions in:
+`mozilla-central/devtools/client/netmonitor/README.md`
+
+## Chrome
+Connecting to Chrome browser
+
+Navigate to the `mozilla-central/devtools/client/netmonitor` folder with your terminal.
+Then run the following commands:
+
+```bash
+# Install packages
+yarn install
+
+# Run a dev server instance (for hosting netmonitor on browser)
+yarn start
+
+# Run Chrome (with port 9222 opened for connections)
+google-chrome --remote-debugging-port=9222
+```
+
+Finally, load `http://localhost:8000` page in your favorite browser
+
+### Prerequisite
+
+Chrome connector is rely on Chrome DevTools Protocol API version 1.2.
+More details: [stable 1.2 protocol](https://chromedevtools.github.io/devtools-protocol/1-2/)
+
+* [Google Chrome] >= 5.4.x
+
+## NodeJS
+
+TBD
+