diff --git a/README.md b/README.md
index b56d3cc..a6223d0 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,39 @@
 # Development tools for the ZX Spectrum
 
-The Dockerfile is the basis of the devcontainer.
+The Dockerfile is the basis of the devcontainer and can be changed to add or remove tools.
 
-The devcontainer contains various assemblers etc.
+The devcontainer contains:
+- pasmo (assembler)
+- sjasmplus (assembler)
+- z80asm (assembler)
+- z80dasm (disassembler)
+- zmakebas (creates BASIC programs)
+- z88dk (C compiler and other utilities includeing assembler)
+- utilities from the FUSE emulator:
+    - audio2tape
+    - createhdf
+    - fmfconv
+    - listbasic
+    - profile2map
+    - raw2hdf
+    - rzxcheck
+    - rzxdump
+    - rzxtool
+    - scl2trd
+    - snap2tzx
+    - snapconv
+    - snapdump
+    - tape2pulses
+    - tape2wav
+    - tapeconv
+    - tzxlist
+- zx0 (binary compressor)
+- dzx0 (binary decompressor)
+- ttttt (converts binaries into .tap blocks)
+- git (version control)
+- make (build control)
 
 Build the example project by running `make` from the terminal or the VSCode extension.
 
 Debug in the built in simulator or in CSpect externally (example CSpect invocation on Windows would be `CSpect.exe -w2 -debug -remote`).
+*Note: to use CSpect debugging from a Linux host you will have to edit the file `.vscode/launch.json` to change the `"hostname"` parameter to `"localhost"`*