small fixes

Author: SimonBlanke

.github/PULL_REQUEST_TEMPLATE.md

@@ -2,4 +2,4 @@
 <!-- Describe your motivation why you will submit this PR. This is useful for reviewers to understand the context of PR. -->
 
 ## Description of the changes
-<!-- Describe the changes in this PR. -->
+<!-- Describe the changes in this PR. -->

CONTRIBUTING.md

@@ -63,7 +63,7 @@ Solving an issue with a pull request is one of the most difficult ways to contri
 
 ## Open an issue
 
-You can contribute to this project by opening an issue. This could be a question, a bug report, a feature request or other types. In any case you should do a search beforehand to confirm, that a similar issue has not already been opened. 
+You can contribute to this project by opening an issue. This could be a question, a bug report, a feature request or other types. In any case you should do a search beforehand to confirm, that a similar issue has not already been opened.
 
 
 <br>
@@ -88,7 +88,7 @@ This could be a feature that could be very useful for your work, an interesting
 
 
 <br>
- 
+
 ---
 
 <br>

docs/search_path_gif.py

@@ -136,7 +136,7 @@ def objective_function_np(args):
                 opt_para_name += "\n " + "     " + para_name + ": "
                 opt_para_value += "\n " + str(para_value) + "                "
 
-        if title == True:
+        if title is True:
             title_name = opt.name + "\n" + opt_para_name
             plt.title(title_name, loc="left")
             plt.title(opt_para_value, loc="center")