docs: enforce sentence case headings

Author: chrisgrieser

.github/pull_request_template.md

@@ -5,8 +5,8 @@
 <!-- Explain how this PR resolves the problem. -->
 
 ## AI usage disclosure
-<!-- If you used AI beyond simple autocomplete, describe how. 
-AI-assisted code is not discouraged if it has been properly reviewed; 
+<!-- If you used AI beyond simple autocomplete, describe how.
+AI-assisted code is not discouraged if it has been properly reviewed;
 this disclosure is for transparency. -->
 
 ## Checklist

.rumdl.toml

@@ -34,9 +34,10 @@ style = "asterisk"  # better than underscore, since it's not considered a word-c
 style = "asterisk"  # better than underscore, since it's not considered a word-char
 
 [MD060]  # auto-format tables
-enabled = true  # opt-in, since rule still experimental
+enabled = true  # opt-in, since disabled by default
 
 [MD063]  # heading-capitalization
+enabled = true  # opt-in, since disabled by default
 style = "sentence_case"
 
 # ------------------------------------------------------------------------------

README.md

@@ -1,4 +1,4 @@
-# nvim-tinygit
+# Nvim-tinygit
 <a href="https://dotfyle.com/plugins/chrisgrieser/nvim-tinygit">
 <img alt="badge" src="https://dotfyle.com/plugins/chrisgrieser/nvim-tinygit/shield?style=flat"/></a>
 
@@ -436,7 +436,7 @@ require("tinygit").stashPop()
 ## Status line components
 
 <!-- LTeX: enabled=false -->
-### git blame
+### Git blame
 <!-- LTeX: enabled=true -->
 Shows the message and date (`git blame`) of the last commit that changed the
 current *file* (not line).