docs: fix misaligned row in README.rst pre-trained models table

[aleksandarbabicdnv]

Problem

The Push to main run after #19 merged fails in build_package at the Check build artifacts step (uvx twine check --strict dist/*):

Checking dist/crane_controller-0.0.1-py3-none-any.whl: FAILED
ERROR  `long_description` has syntax errors in markup and would not be rendered on PyPI.
       line 207: Error: Malformed table. Right border not aligned or missing.

pyproject.toml sets readme = "README.rst", so README.rst is the package long_description. The grid table under Pre-trained models has one misaligned row: the hybrid_cv01_s5775.zip row was one space short in its first cell, putting its column borders at 1/43/54/61 instead of the 1/44/55/62 used by every other row and border line. docutils rejects the whole table, and --strict turns that into a failure.

Cause / why it wasn't caught

• Pre-existing — introduced 2026-06-16 in 86913ae, already on main before fix: correct continuous-action PPO scaling, seeding, and eval defaults; retrain pinned models #19. The fix: correct continuous-action PPO scaling, seeding, and eval defaults; retrain pinned models #19 merge just re-ran the job that surfaces it.
• pull_request_to_main.yml has the build_package job commented out, so twine check only runs post-merge (push_to_main.yml), never on PRs.

Fix

One space added to the hybrid_cv01_s5775.zip row so it is 62 chars wide and its borders line up. No other changes.

Verification

docutils at twine's report level — no "Malformed table":

python -c "import docutils.core,sys; docutils.core.publish_parts(open('README.rst',encoding='utf-8').read(), writer_name='html5', settings_overrides={'report_level':2,'halt_level':5,'warning_stream':sys.stderr}); print('OK')"

Full CI-equivalent:

uv build && uvx twine check --strict dist/*
#   Checking dist/crane_controller-0.0.1-py3-none-any.whl: PASSED
#   Checking dist/crane_controller-0.0.1.tar.gz: PASSED

[eisDNV]

Ok