minor correction in intro slides.

slides/wk01/intro.html

@@ -94,7 +94,7 @@ Pronouns: She/her
 
 [Make4All Lab](http://make4all.org)
 
-I use techonology to improving inclusion in
+I use technology to improve inclusion in
 and accessibility of our digital future.
 
 - Assistive and health technology
@@ -122,7 +122,7 @@ I aspire to make software engineering inclusive to developers who are blind or v
  
 .right-column-half[
  
-![:img headshot of Venkatesh Potluri](img/potluri_headshot.png)
+![:img Close up of Venkatesh smiling wearing an orange checkered shirt. Background is white.](img/potluri_headshot.png)
  
 ]
 ---
@@ -172,10 +172,10 @@ The class is on the [web]({{site.baseurl}}/index),
   everything as much as possible.
 
 - Class discussions and all contact with instructors should happen
-either in office hours or through a [mailing lit]({{site.piazza}})
+either in office hours or through a [mailing list]({{site.piazza}})
 - You can also request appointments for further help
 ---
-#  Development Environement
+#  Development Environment
 **Background**: Programming expected
 
 Python is our primary language