Fix copyright string quoting

Author: limzykenneth

i18n-tracking.yml

@@ -1836,6 +1836,7 @@ es:
     line 604: '  color-custom-ranges-li3x2'
     line 424: '    with p5.js.'
     line 433: '    presentations. I used'
+    line 84: '  copyright1'
 hi:
   src/data/en.yml:
     line 26: footer6
@@ -1847,6 +1848,7 @@ hi:
     line 31: footer8
     line 32: footer9
     line 85: '    under the terms of the '
+    line 84: '  copyright1'
 ko:
   src/data/en.yml:
     line 85: '    under the terms of the '
@@ -3685,6 +3687,7 @@ ko:
     line 604: '  color-custom-ranges-li3x2'
     line 424: '    with p5.js.'
     line 433: '    presentations. I used'
+    line 84: '  copyright1'
 zh-Hans:
   src/data/en.yml:
     line 85: '    under the terms of the '
@@ -5523,3 +5526,4 @@ zh-Hans:
     line 604: '  color-custom-ranges-li3x2'
     line 424: '    with p5.js.'
     line 433: '    presentations. I used'
+    line 84: '  copyright1'

src/data/en.yml

@@ -79,8 +79,7 @@ home:
   sketch_info: Hunminjeongeum2020 created by Seonghyeon Kim
 copyright:
   copyright-title: Copyright Information
-  copyright1: >-
-    'The p5.js library is free software; you can redistribute it and/or modify it
+  copyright1: 'The p5.js library is free software; you can redistribute it and/or modify it
     under the terms of the '
   copyright2: ' as published by the Free Software Foundation, version 2.1.'
   copyright3: 'The Reference for the language is under a '