Clarified development cycle:

- Specified where cycle planning starts
- Documented the practice of bug blitzes and the criteria for entering and exiting one

Development-Cycle.md

@@ -37,6 +37,11 @@ Each team member answers three questions:
 - What will I work on today?
 - Is anything blocking my work on an assigned issue?
 
+### Bug Blitzes
+Bug blitzes are periods during which the team suspends all planned feature work to focus exclusively on bugs.
+
+The team may declare a bug blitz any time the count of [open issues with a severity assessed](https://github.com/netbox-community/netbox/issues?q=is%3Aissue+is%3Aopen+label%3A%22type%3A+bug%22+label%3A%22severity%3A+low%22%2C%22severity%3A+medium%22%2C%22severity%3A+high%22) exceeds 50. The blitz ends when that figure drops to 40.
+
 ## Cycle Backlog Refinement – Last day of every other cycle, as needed
 The product manager and the developers refine the issues in the Product Backlog so that they make progress toward the Cycle Backlog. 
 
@@ -45,7 +50,7 @@ Starting at the top of the Product Backlog, the team selects issues that they co
 - Which category fits the issue?
 - What should be the issue's priority?
 - Does the issue have a _Milestone_ that matches its _Target Release_? If not, make it so.
-- Set the issue's _Status_ to _Backlog_
+- Set the issue's _Status_ property in the project to _Backlog_
 
 ## Cycle Planning – First day of every cycle
 The product manager and the developers review the cycle backlog, selecting issues from the _Backlog_ column for work during the new cycle, confirming their readiness, and ideally moving them to the _Todo_ column.
@@ -56,13 +61,15 @@ Each issue in the cycle backlog goes through a process that subjects it to one o
 - Assign and promote to Todo
 - Break down into smaller issues
 
-In chart form (`TODO`: Add a bit more granularity upstream of _Any Takers?_):
+In chart form:
 ```mermaid
 flowchart TD
     A[🎬
-    Start] -->B{✋
-        Any Takers?}
-    B -->|Yes| D{🤔
+    Start] -->B[🎟️
+    Backlog Column]
+    B -->C{✋
+    Any Takers?}
+    C -->|Yes| D{🤔
     Achievable
     in 1 Cycle?}
     B -->|No| E{🤔