diff --git a/README.org b/README.org
index e0ae227..d08e1bd 100644
--- a/README.org
+++ b/README.org
@@ -2348,8 +2348,11 @@ Watch out for completion `visit-tags-table' prompts."
 (defun org-babel-execute:conf (_body _params)
   "NO-OP to silence warnings." nil)
 
+(defun org-babel-execute:diff (_body _params)
+  "NO-OP to silence warnings." nil)
+
 (defun org-babel-execute:text (_body _params)
-  "NO-OP to silence warnings." t)
+  "NO-OP to silence warnings." nil)
 
 (defun org-babel-execute:toml (_body _params)
   "NO-OP to silence warnings." nil)
@@ -5676,7 +5679,7 @@ Points for further investigation are:
 7. The list of installed packages in listing [[lst:list-julia-packages-result]]
    facilitate [[https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-julia.html][Julia Code Blocks in Babel]] because the list contains [[https://github.com/JuliaData/CSV.jl][CSV]] and
    [[https://dataframes.juliadata.org/stable/][DataFrames]].
-7. How to update automatically to the [[https://julialang.org/downloads/#current_stable_release][current stable release of Julia]].
+8. How to update automatically to the [[https://julialang.org/downloads/#current_stable_release][current stable release of Julia]].
 A list of interesting online course material is:
 1. [[https://ucidatascienceinitiative.github.io/IntroToJulia/][A Deep Introduction to Julia for Data Science and Scientific Computing]].
 2. [[https://juliateachingctu.github.io/Julia-for-Optimization-and-Learning/stable/][Julia for Optimization and Learning]].