more fixes per PR review

sagemathinc · Aug 10, 2018 · 3f7d92d · 3f7d92d
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diff --git a/interactions/interactions.md b/interactions/interactions.md
@@ -61,7 +61,7 @@ If you want to check the access permissions of all the files contained in a give
 
 ![Access check](./assets/ls_assignment.png)
 
-In the case you want to change a read only file into a read and write, type `chmod a+w filename` on the terminal.
+In case you want to change a read only file into a read and write, type `chmod a+w filename` on the terminal.
 
 ## Group Projects
 There are various ways in which you can facilitate students' group projects in CoCalc.

diff --git a/tips_and_tricks/tips_and_tricks.md b/tips_and_tricks/tips_and_tricks.md
@@ -11,7 +11,7 @@ prev:
 In this section we will present some CoCalc features and useful tricks that will make the management of your project easier.
 
 ## Text fields generally support markdown and LaTeX
-CoCalc not only facilitates the creation of LaTeX documents, but the multiple text sections in CoCalc support and render LaTeX and markdown  (specifically  [GitHub Flavored Markdown](https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet)).
+CoCalc not only facilitates the creation of LaTeX documents, but most input areas in CoCalc support and render LaTeX and markdown  (specifically  [GitHub Flavored Markdown](https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet)).
 
 For example, you can use LaTeX syntax in the chat rooms: