Edited README.md to remove installation of a text editor

With the previous commit, we now build Nano by default within Maneage, and
project authors can ask to install Emacs and Vim within 'TARGETS.conf'. So
in the instructions to build within a Docker image have been removed.

1 files changed, 7 insertions, 10 deletions

diff --git a/README.md b/README.md
index 383dbc1..aadfcef 100644
--- a/README.md
+++ b/README.md
@@ -244,21 +244,18 @@ MB), not the full TeXLive collection!
     ```
 
  2. **Maneage dependencies:** By default the "slim" versions of the
-    operating systems don't contain a compiler, so you need to use the
-    selected operating system's package manager to import them. You can
-    optionally install two other programs: 1) To inspect/edit the project's
-    source files later, install your favorite text editor. 2) If you don't
-    have the project's software tarballs, and want the project to download
-    them automatically, you also need a downloader.
+    operating systems don't contain a compiler (needed by Maneage to
+    compile precise versions of all the tools). You thus need to use the
+    selected operating system's package manager to import them (below is
+    the command for Debian). Optionally, if you don't have the project's
+    software tarballs, and want the project to download them automatically,
+    you also need a downloader.
 
     ```shell
     # C and C++ compiler.
     RUN apt-get update && apt-get install -y gcc g++
 
-    # Uncomment this to add a text editor (to modify source files later).
-    #RUN apt-get install -y nano
-
-    # Uncomment this if you don't have 'software-XXXX.tar.gz'
+    # Uncomment this if you don't have 'software-XXXX.tar.gz' (below).
     #RUN apt-get install -y wget
     ```