DOC: Fix doc build failure

Fix issue in doc build

docs/Makefile

@@ -51,8 +51,8 @@ html:
 	mkdir -p $(BUILDDIR)/source/examples/notebooks/generated
 	$(TOOLSPATH)$(NOTEBOOKBUILD) --parallel --report-errors --skip-existing --execute-only
 	@echo "Running sphinx-build"
-	@echo @$(SPHINXBUILD) -j auto -b html "$(SOURCEDIR)" "$(BUILDDIR)" $(ALLSPHINXOPTS) $(O)
-	@$(SPHINXBUILD) -j auto -b html "$(SOURCEDIR)" "$(BUILDDIR)" $(ALLSPHINXOPTS) $(O)
+	@echo @$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(ALLSPHINXOPTS) $(O)
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(ALLSPHINXOPTS) $(O)
 
 # Catch-all target: route all unknown targets to Sphinx using the new
 # "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).

statsmodels/regression/rolling.py

@@ -243,11 +243,11 @@ def fit(self, method='inv', cov_type='nonrobust', cov_kwds=None,
             Method to use when computing the the model parameters.
 
             * 'inv' - use moving windows inner-products and matrix inversion.
-               This method is the fastest, but may be less accurate than the
-               other methods.
+              This method is the fastest, but may be less accurate than the
+              other methods.
             * 'lstsq' - Use numpy.linalg.lstsq
             * 'pinv' - Use numpy.linalg.pinv. This method matches the default
-               estimator in non-moving regression estimators.
+              estimator in non-moving regression estimators.
         cov_type : {'nonrobust', 'HCCM', 'HC0'}
             Covariance estimator:
 

tools/ci/docbuild.sh

@@ -36,6 +36,10 @@ if [ -f "build/html/index.html" ]; then
   echo "docbuild succeeded.";
 else
   echo "docbuild failed. Aborting doctr.";
+  echo "contents of build"
+  ls build
+  echo "contents of build/html"
+  ls build/html
   exit 1;
 fi;