Copy towncrier types from project template.

- This updates the ``towncrier`` types. Seems like we were missing a few.

newsfragments/README.md

@@ -5,15 +5,17 @@ release notes. This should be a description of aspects of the change
 commit message and PR description, which are a description of the change as
 relevant to people working on the code itself.)
 
- Each file should be named like `<ISSUE>.<TYPE>.rst`, where
+Each file should be named like `<ISSUE>.<TYPE>.rst`, where
 `<ISSUE>` is an issue number, and `<TYPE>` is one of:
 
 * `feature`
 * `bugfix`
+* `performance`
 * `doc`
+* `internal`
+* `removal`
 * `misc`
-* `breaking-change`
-* `deprecation`
+* `breaking`
 
 So for example: `123.feature.rst`, `456.bugfix.rst`
 
@@ -22,5 +24,5 @@ then open up the PR first and use the PR number for the newsfragment.
 
 Note that the `towncrier` tool will automatically
 reflow your text, so don't try to do any fancy formatting. Run
-`towncrier --draft` to get a preview of what the release notes entry
+`towncrier build --draft` to get a preview of what the release notes entry
 will look like in the final release notes.

newsfragments/validate_files.py

@@ -7,12 +7,14 @@
 import sys
 
 ALLOWED_EXTENSIONS = {
+    '.breaking.rst',
     '.bugfix.rst',
     '.doc.rst',
     '.feature.rst',
+    '.internal.rst',
     '.misc.rst',
-    '.breaking-change.rst',
-    '.deprecation.rst',
+    '.performance.rst',
+    '.removal.rst',
 }
 
 ALLOWED_FILES = {

pyproject.toml

@@ -7,34 +7,44 @@
     title_format = "v{version} ({project_date})"
 
 [[tool.towncrier.type]]
-directory = "breaking-change"
-name="Breaking Changes"
-showcontent=true
+directory = "feature"
+name = "Features"
+showcontent = true
 
 [[tool.towncrier.type]]
-directory = "deprecation"
-name = "Deprecations"
+directory = "bugfix"
+name = "Bugfixes"
 showcontent = true
 
 [[tool.towncrier.type]]
-directory = "bugfix"
-name="Bugfixes"
-showcontent=true
+directory = "performance"
+name = "Performance improvements"
+showcontent = true
 
 [[tool.towncrier.type]]
 directory = "doc"
-name="Documentation Updates"
-showcontent=true
+name = "Improved Documentation"
+showcontent = true
 
 [[tool.towncrier.type]]
-directory = "feature"
-name="Features"
-showcontent=true
+directory = "removal"
+name = "Deprecations and Removals"
+showcontent = true
+
+[[tool.towncrier.type]]
+directory = "internal"
+name = "Internal Changes - for <PROJECT_NAME> Contributors"
+showcontent = true
 
 [[tool.towncrier.type]]
 directory = "misc"
-name="Misc"
-showcontent=false
+name = "Miscellaneous changes"
+showcontent = false
+
+[[tool.towncrier.type]]
+directory = "breaking"
+name = "Breaking changes"
+showcontent = true
 
 [tool.isort]
 profile="black"