Update docs and lab dependency in binder to rc10

Author: karlaspuldaro

CONTRIBUTING.md

@@ -29,16 +29,16 @@ You can contribute to the project through:
 
 Development requires:
 
-- `nodejs` 10+
-- `python` 3.5+
-- `jupyterlab` 2
+- `nodejs >=12,<15`
+- `python python >=3.6,<3.9.0a0`
+- `jupyterlab >=3.0.0rc10,<4.0.0a0`
 
 It is recommended to use a virtual environment (e.g. `virtualenv` or `conda env`)
 for development.
 
 ```bash
-conda env update -n jupyterlab-lsp   # create a conda env
-source activate jupyterlab-lsp       # activate it
+conda env update -n jupyterlab-lsp --file binder/environment.yml   # create a conda env
+source activate jupyterlab-lsp                                     # activate it
 # or...
 pip install -r requirements/dev.txt  # in a virtualenv, probably
                                      # ... and install nodejs, somehow
@@ -59,7 +59,7 @@ This performs all of the basic setup steps, and is used for the binder demo.
 Install `jupyter-lsp` from source in your virtual environment:
 
 ```bash
-python -m pip install -e .
+python -m pip install -e . --ignore-installed --no-deps -vv
 ```
 
 Enable the server extension:
@@ -72,9 +72,8 @@ Install `npm` dependencies, build TypeScript packages, and link
 to JupyterLab for development:
 
 ```bash
-jlpm
-jlpm build
-jlpm lab:link
+jlpm bootstrap
+pip install .
 ```
 
 ### Frontend Development

README.md

@@ -77,7 +77,7 @@ Use context menu on rows in the panel to filter out diagnostics or copy their me
 
 You will need to have all of the following installed:
 
-- JupyterLab >=2.2.0,<3.0.0a0
+- JupyterLab >=3.0.0rc10,<4.0.0a0
 - Python 3.5+
 - nodejs 10+
 
@@ -97,9 +97,9 @@ Use of a python `virtualenv` or a conda env is also recommended.
 1. install JupyterLab and the server extension
 
    ```bash
-   conda install -c conda-forge 'jupyterlab>=3.0.0-rc.7,<4.0.0a0' jupyter-lsp
+   conda install -c conda-forge 'jupyterlab>=3.0.0-rc.10,<4.0.0a0' jupyter-lsp
    # or
-   pip install 'jupyterlab>=3.0.0-rc.7,<4.0.0a0' jupyter-lsp
+   pip install 'jupyterlab>=3.0.0-rc.10,<4.0.0a0' jupyter-lsp
    ```
 
    > Note: With conda, you could take advantage of the bundles: `jupyter-lsp-python`

binder/environment.yml

@@ -9,7 +9,7 @@ channels:
 dependencies:
   # runtime dependencies
   - python >=3.7,<3.8.0a0
-  - jupyterlab >=3.0.0rc8,<4.0.0a0
+  - jupyterlab >=3.0.0rc10,<4.0.0a0
   - notebook >=4.3.1
   # build dependencies
   - nodejs >=10,<14