First attemp solving broken links

Lessons/L03_UsingArgoData/Chapter10_UsingArgoData_intro.md

@@ -66,9 +66,9 @@ However we recomend to download the data from [here](https://drive.google.com/dr
 
 ### Further reading
 
-For the full description of the formats and files produced by the Argo Data Assembly Centres (DACs), see the [Argo user’s manual](https://archimer.ifremer.fr/doc/00187/29825/), the [Argo Quality Control Manual for CTD and Trajectory Data](https://archimer.ifremer.fr/doc/00228/33951/) or the [The Argo data management handbook](http://www.argodatamgt.org/content/download/340/2645/file/argo_data_management_handbook.pdf)
+For the full description of the formats and files produced by the Argo Data Assembly Centres (DACs), see the [Argo user’s manual](https://archimer.ifremer.fr/doc/00187/29825/), the [Argo Quality Control Manual for CTD and Trajectory Data](https://archimer.ifremer.fr/doc/00228/33951/) or the [The Argo data management handbook](http://www.argodatamgt.org/content/download/340/2645/file/argo_data_management_handbook.pdf).
 
-More information can be found in the [Argo Steering Team web page](http://www.argo.ucsd.edu/) or the [Argo Data Management team documentation](http://www.argodatamgt.org/Documentation)
+More information can be found in the [Argo Steering Team web page](http://www.argo.ucsd.edu/) or the [Argo Data Management team documentation](http://www.argodatamgt.org/Documentation).
 
 
 ## License for this book

Lessons/L03_UsingArgoData/Chapter11_TheNetCDFFormat.ipynb

@@ -48,7 +48,7 @@
     "\n",
     "![NetCDFLogo](https://www.unidata.ucar.edu/images/logos/netcdf-150x150.png) netCDF stands for **Network Common Data Form** and it is a set of software libraries and machine-independent data formats that support the creation, access, and sharing of array-oriented scientific data. It is also a community standard for sharing scientific data.  \n",
     "\n",
-    "[**NetCDF**](https://www.unidata.ucar.edu/software/netcdf/) is maintained by [**Unidata**](https://www.unidata.ucar.edu/), one of the University Corporation for Atmospheric Research (UCAR)'s Community Programs (UCP). Unidata also supports and maintains netCDF programming interfaces for C, C++, Java, and Fortran. Programming interfaces are also available for Python, IDL, MATLAB, R, Ruby, and Perl. Thanks [**UCAR**](https://www.ucar.edu/)!!"
+    "[**NetCDF**](https://www.unidata.ucar.edu/software/netcdf/) is maintained by [**Unidata**](https://www.unidata.ucar.edu/), one of the University Corporation for Atmospheric Research (UCAR)'s Community Programs (UCP). Unidata also supports and maintains netCDF programming interfaces for C, C++, Java, and Fortran. Programming interfaces are also available for Python, IDL, MATLAB, R, Ruby, and Perl. Thanks [**UCAR**](https://www.ucar.edu/)!"
    ]
   },
   {

Lessons/L03_UsingArgoData/Chapter20_ArgoDatabyFloat_Intro.ipynb

@@ -44,7 +44,7 @@
    "source": [
     "**Real-Time and Calibrated data**\n",
     "\n",
-    "Since the target of the Argo program is to have the Argo data available within 12 hours of its transmission from the float, this data is called the *Real-Time* (RT) data. One year after the data were observed, it is adjusted if necessary, and made public. This calibrated data is called *Delayed Mode* (DM) data.  In section [Real-Time and Delayed mode data¶](https://www.euro-argo.eu/argo-online-school/Lessons/L03_UsingArgoData/Chapter40_RTandDM.html) we will describe in detail the differences between both kinds of data, and what are the quality control flags. However, to keep it simple, we will begin by focusing on the Real-Time (RT) data."
+    "Since the target of the Argo program is to have the Argo data available within 12 hours of its transmission from the float, this data is called the *Real-Time* (RT) data. One year after the data were observed, it is adjusted if necessary, and made public. This calibrated data is called *Delayed Mode* (DM) data.  In section [Real-Time and Delayed mode data](https://euroargodev.github.io/argoonlineschool/Lessons/L03_UsingArgoData/Chapter40_RTandDM.html) we will describe in detail the differences between both kinds of data, and what are the quality control flags. However, to keep it simple, we will begin by focusing on the Real-Time (RT) data."
    ]
   },
   {

Lessons/L03_UsingArgoData/Chapter40_RTandDM.ipynb

@@ -61,7 +61,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -75,7 +75,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.6"
+   "version": "3.8.3"
   }
  },
  "nbformat": 4,