run lint and fix errors, except mypy

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -15,13 +15,13 @@ body:
   - type: textarea
     attributes:
       label: Expected behavior
-      description: Describe what you expect to happen.    
+      description: Describe what you expect to happen.
     validations:
       required: true
   - type: textarea
     attributes:
       label: Actual behavior
-      description: Describe what actually happens.    
+      description: Describe what actually happens.
     validations:
       required: true
   - type: textarea
@@ -34,13 +34,13 @@ body:
   - type: textarea
     attributes:
       label:  Possible Solution
-      description: Suggest a fix/reason for the bug, or ideas how to implement the addition or change. 
+      description: Suggest a fix/reason for the bug, or ideas how to implement the addition or change.
     validations:
       required: false
   - type: textarea
     attributes:
       label: Environment
-      description: Run this: `$ python -m eth_utils` and put the results here.
+      description: Run `$ python -m eth_utils` and put the results here.
       render: shell
     validations:
       required: false

.github/ISSUE_TEMPLATE/enhancement.yml

@@ -4,7 +4,7 @@ body:
   - type: textarea
     attributes:
       label: Description
-      description: Describe the enhancement that you are proposing.    
+      description: Describe the enhancement that you are proposing.
     validations:
       required: true
   - type: textarea

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -21,7 +21,7 @@ body:
     attributes:
       label: Requirements
       description: Write a list of what you want this feature to do.
-      placeholder: "1." 
+      placeholder: "1."
     validations:
       required: true
   - type: textarea

.github/pull_request_template.md

@@ -8,12 +8,10 @@ Summary of approach.
 
 ### To-Do
 
-[//]: # (Stay ahead of things, add list items here!)
 - [ ] Clean up commit history
 
-[//]: # (See: https://py-libp2p.readthedocs.io/en/latest/contributing.html#pull-requests)
-- [ ] Add entry to the [release notes](https://github.com/libp2p/py-libp2p/blob/main/newsfragments/README.md)
+* [ ] Add entry to the [release notes](https://github.com/libp2p/py-libp2p/blob/main/newsfragments/README.md)
 
 #### Cute Animal Picture
 
-![put a cute animal picture link inside the parentheses]()
+![put a cute animal picture link inside the parentheses](<>)