diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3521037..91e3a41 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,7 +11,7 @@
 
 ## 1.54.0 (Release on 31 October 2022)
 
-- Intelligent run selection for R (runs complete statment not just line)
+- Intelligent run selection for R (runs complete statement not just line)
 - Improve handling of first-run files for create project command
 
 ## 1.53.0 (Release on 27 October 2022)
@@ -41,7 +41,7 @@
 
 ## 1.48.0 (Release on 14 October 2022)
 
-- Implment smart paste of links (surround selected text)
+- Implement smart paste of links (surround selected text)
 - Use REditorSupport.r as ID for R extension
 
 ## 1.47.0 (Release on 13 October 2022)
diff --git a/README.md b/README.md
index 0f1947a..c30bd59 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ VS Code extension for the [Quarto](https://quarto.org) scientific and technical
 - Completion for citations and cross references
 - Commands and key-bindings for running cells and selected line(s)
 - Automatic navigation to render errors for Jupyter, Knitr, and YAML
-- Live preview for embedded mermaid and graphviz diagrams
+- Live preview for embedded Mermaid and Graphviz diagrams
 - Assist panel for contextual help, image preview, and math preview
 - Code snippets for common markdown constructs
 - Code folding and document outline for navigation within documents
diff --git a/languages/README.md b/languages/README.md
index bf243a9..d909b6f 100644
--- a/languages/README.md
+++ b/languages/README.md
@@ -1,4 +1,4 @@
-We've incorporated code from several other extensions to provide features for LaTeX, Medmaid, and Graphviz:
+We've incorporated code from several other extensions to provide features for LaTeX, Mermaid, and Graphviz:
 
 - LaTeX code completion, preview, and language support from https://github.com/James-Yu/LaTeX-Workshop