docs: Rework the readme file in the vtr_flow directory.
* Convert the file to markdown.
* Actually link to the "running the vtr flow" docs.
diff --git a/vtr_flow/README.md b/vtr_flow/README.md
new file mode 100755
index 0000000..53558dd
--- /dev/null
+++ b/vtr_flow/README.md
@@ -0,0 +1,7 @@
+# VTR Flow
+
+This folder contains architecture files, benchmark circuits and scripts for running the VTR flow.
+
+For a description see the ['Running the VTR Flow' documentation at https://docs.verilogtorouting.org](https://docs.verilogtorouting.org/en/latest/vtr/running_vtr/),
+or the [`run_vtr_flow.rst` file](../doc/src/vtr/run_vtr_flow.rst) in the [`doc` folder](../doc)
+in the [root of the VTR source tree](https://github.com/SymbiFlow/vtr-verilog-to-routing).
diff --git a/vtr_flow/Readme.txt b/vtr_flow/Readme.txt
deleted file mode 100755
index 62205e4..0000000
--- a/vtr_flow/Readme.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-This folder contains architecture files, benchmark circuits and scripts for running the VTR flow.
-
-For a description see the 'Running the VTR Flow' documentation at https://docs.verilogtorouting.org, or the 'docs' folder in the root of the VTR source tree.