branch rename for 3 examples

_licenses/cc0-1.0.txt

@@ -11,7 +11,7 @@ how: Create a text file (typically named LICENSE or LICENSE.txt) in the root of
 note: Creative Commons recommends taking the additional step of adding a boilerplate notice to the top of each file. The boilerplate can be <a href="https://wiki.creativecommons.org/wiki/CC0_FAQ#May_I_apply_CC0_to_computer_software.3F_If_so.2C_is_there_a_recommended_implementation.3F">found on their website</a>.
 
 using:
-  - Awesome: https://github.com/sindresorhus/awesome/blob/master/license
+  - Awesome: https://github.com/sindresorhus/awesome/blob/main/license
   - Shields.io: https://github.com/badges/shields/blob/master/LICENSE
   - psdash: https://github.com/Jahaja/psdash/blob/master/LICENSE
 

_licenses/epl-1.0.txt

@@ -8,7 +8,7 @@ how: Create a text file (typically named LICENSE or LICENSE.txt) in the root of
 
 using:
   - Eclipse hawkBit: https://github.com/eclipse/hawkbit/blob/master/LICENSE
-  - JUnit: https://github.com/junit-team/junit4/blob/master/LICENSE-junit.txt
+  - JUnit: https://github.com/junit-team/junit4/blob/main/LICENSE-junit.txt
   - Quil: https://github.com/quil/quil/blob/master/LICENSE
 
 permissions:

_licenses/mpl-2.0.txt

@@ -12,7 +12,7 @@ note: The Mozilla Foundation recommends taking the additional step of adding a b
 
 using:
   - Servo: https://github.com/servo/servo/blob/master/LICENSE
-  - Syncthing: https://github.com/syncthing/syncthing/blob/master/LICENSE
+  - Syncthing: https://github.com/syncthing/syncthing/blob/main/LICENSE
   - TimelineJS3: https://github.com/NUKnightLab/TimelineJS3/blob/master/LICENSE
 
 permissions: