doc: Copyedit tasks documentation

- Add h1 heading (as most other top-level .md files have them).
- Make capitalization more consistent (preferring existing style).
- Adjust code formatting and italics, to clarify what is code.
- Tiny punctuation change for consistency.

Author: EliahKagan

tasks.md

@@ -1,21 +1,23 @@
+# Tasks
+
 ## Tracking issues
 
-* [repository clone](https://github.com/GitoxideLabs/gitoxide/issues/303)
-* [repository FSCK](https://github.com/GitoxideLabs/gitoxide/issues/304)
+* [Repository clone](https://github.com/GitoxideLabs/gitoxide/issues/303)
+* [Repository FSCK](https://github.com/GitoxideLabs/gitoxide/issues/304)
 * [Show changes in various forms](https://github.com/GitoxideLabs/gitoxide/issues/305)
 * [Client side push (client to server)](https://github.com/GitoxideLabs/gitoxide/issues/306)
 * [Server fetch/pull (server to client)](https://github.com/GitoxideLabs/gitoxide/issues/307)
 
-## Smaller Tasks
+## Smaller tasks
 
 …to not forget. Might get reorganized.
 
 ### gix organize
 
-* [ ] Add journey test to cover case with non-bare repository. Try to only read `non-bare` git config files and see the journey test fail.
+* [ ] Add journey test to cover case with non-bare repository. Try to only read *non-bare* git config files and see the journey test fail.
 
 ### gix cat
 
-* A program to cat objects and pretty-print them, similar to git cat-file. Useful to get a feel for
-  'locate(…)' performance and stress test it a little.
-* Be sure to escape terminal escape codes
+* A program to cat objects and pretty-print them, similar to `git cat-file`. Useful to get a feel for
+  `locate(…)` performance and stress test it a little.
+* Be sure to escape terminal escape codes.