[DOC] Update Mars docs domain and pin pandas (#3344)

* [DOC] Update Mars docs domain

* Change from `docs.pymars.org` to `mars-project.readthedocs.io`

* Pin pandas>=1.0.0,<2.0.0

Author: zhongchun

.github/PULL_REQUEST_TEMPLATE.md

@@ -16,4 +16,4 @@ Fixes #xxxx
 ## Check code requirements
 
 - [ ] tests added / passed (if needed)
-- [ ] Ensure all linting tests pass, see [here](https://docs.pymars.org/en/latest/development/contributing.html#check-code-styles) for how to run them
+- [ ] Ensure all linting tests pass, see [here](https://mars-project.readthedocs.io/en/latest/development/contributing.html#check-code-styles) for how to run them

SUPPORT.md

@@ -3,7 +3,7 @@
 We use GitHub for tracking bugs and feature requests. If you need any support for using Mars, please refer to the following resources below.
 
 ## Documentation
--   [User Documentation](https://docs.pymars.org/en/latest/installation/index.html)
+-   [User Documentation](https://mars-project.readthedocs.io/en/latest/installation/index.html)
 
 ## Mailing list
 - [mars-dev@googlegroups.com](https://groups.google.com/forum/#!forum/mars-dev)

benchmarks/README.md

@@ -48,7 +48,7 @@ This script assumes `tpch-dbgen` is in the same directory. If you downloaded it
 
 ### Installation
 
-Follow the instructions [here](https://docs.pymars.org/en/latest/installation/index.html).
+Follow the instructions [here](https://mars-project.readthedocs.io/en/latest/installation/index.html).
 
 ### Running queries
 

benchmarks/asv_bench/asv.conf.json

@@ -7,7 +7,7 @@
     "project": "pymars",
 
     // The project's homepage
-    "project_url": "https://docs.pymars.org/",
+    "project_url": "https://mars-project.readthedocs.io/",
 
     // The URL or local path of the source code repository for the
     // project being benchmarked

docs/requirements-doc.txt

@@ -1,5 +1,5 @@
 numpy>=1.14.0
-pandas>=1.0.0
+pandas>=1.0.0,<2.0.0
 scikit-learn>=0.20.3
 tornado>=6.0
 pyarrow>=0.11.0,!=0.16.*

mars/services/web/ui/src/LeftMenu.js

@@ -112,7 +112,7 @@ export default function LeftMenu() {
           <ListItemText primary="Sessions" />
         </ListItem>
         {genSessionSubMenu()}
-        <ListItem button component="a" href="https://docs.pymars.org" target="_blank">
+        <ListItem button component="a" href="https://mars-project.readthedocs.io" target="_blank">
           <ListItemIcon>
             <DescriptionIcon />
           </ListItemIcon>

setup.cfg

@@ -27,7 +27,7 @@ include_package_data = True
 packages = find:
 install_requires =
     numpy>=1.14.0
-    pandas>=1.0.0
+    pandas>=1.0.0,<2.0.0
     scipy>=1.0.0
     scikit-learn>=0.20
     numexpr>=2.6.4