Fixed typos and image alignment (#27)

* Fixed typo

* Fixed image alignment

---------

Co-authored-by: Priya Sharma <priya.sharma66@techmahindra.com>

Author: priyasharma1

source/volunteer/university.md

@@ -24,7 +24,7 @@ We engage with multiple departments and programs:
 * Connect with faculty and student organizations
 * Create simple posters targeted at each audience
 * Create more detailed landing pages for each audience, describing what
-  they night get out of the event. Note that many students will be
+  they might get out of the event. Note that many students will be
   unaware of the ASF, but familiar with some of the individual projects,
   or open source in general
 * Put up posters or fliers at local colleges, universities, and

static/style/screen.css

@@ -204,14 +204,19 @@ th, td {
 .pull-left {
     float: left;
     margin-right: 2rem;
-    margin-botton: 1rem;
+    margin-bottom: 1rem;
     border-radius: 12%;
+    width: 280px;
+    max-width: 40%;
+    height: auto;
+    display: block;
+    overflow: hidden;
 }
 
 .pull-right {
     float: right;
     margin-left: 2rem;
-    margin-botton: 1rem;
+    margin-bottom: 1rem;
     border-radius: 12%;
 }