SOF-7261: fix footnotes

lang/en/docs/data-on-disk/overview.md

@@ -1,6 +1,6 @@
 # Data on Disk
 
-[Unstructured](../data/classification.md#by-internal-organization) data generated on our platform consists of the input and output files of simulations. This data is stored in [block storage](../infrastructure/storage.md) (or conventional hard drive disks) connected to the [computing clusters](../infrastructure/clusters/overview.md) at the heart of the general [infrastructure](../infrastructure/overview.md). 
+[Unstructured](../data/classification.md#by-internal-organization) data generated on our platform consists of the input and output files of simulations. This data is stored in [block storage](../infrastructure/storage.md) (or conventional hard drive disks) connected to the [computing clusters](../infrastructure/clusters/overview.md) at the heart of the general [infrastructure](../infrastructure/overview.md).
 
 We introduce below the key concepts associated with the disk storage of such unstructured data.
 
@@ -10,12 +10,12 @@ We review our approach towards distributing the storage of simulation data in an
 
 ## [Storage Quota](quotas.md)
 
-In order to avoid running out of space, **storage quotas** are attributed to every storage space present across our infrastructure, limiting the amount (size) of the data that may be contained in them at any moment. They are explained in detail [here](quotas.md), for each case. 
+In order to avoid running out of space, **storage quotas** are attributed to every storage space present across our infrastructure, limiting the amount (size) of the data that may be contained in them at any moment. They are explained in detail [here](quotas.md), for each case.
 
 ## [Security](security.md)
 
 Security policies affecting the storage of simulation files on the hard drives of our infrastructure are the object of a dedicated discussion [in this section](security.md).
 
 ## Links
 
-[^1] [Block Storage, Wikipedia page](https://en.wikipedia.org/wiki/Block_(data_storage))
+[^1]: [Block Storage, Wikipedia page](https://en.wikipedia.org/wiki/Block_(data_storage))

lang/en/docs/data-on-disk/quotas.md

@@ -1,5 +1,5 @@
 # Storage Quota
-    
+
 We apply **storage quotas** to both the [directories](directories.md) on clusters. This limits the amount of storage space that can be consumed by [accounts](../accounts/overview.md), in order to avoid any problems. The concept of quota in the general context of account management is reviewed [here](../accounts/quota.md). This is an administrative limitation and can be easily extended as explained [here](../accounts/accounting/increase-quota.md)
 
 ## Conventions
@@ -10,10 +10,10 @@ The quotas are set per [cluster](../infrastructure/clusters) and are always **ha
     The explanation of the service levels [in this page](../pricing/service-levels.md) contains compound values for the disk quota for all accessible clusters. Depending on user demands we can allocate more or less quota per cluster.
 
 Current quotas applicable to the folders available to the user can be inspected at any time via the [Command Line Interface](../cli/overview.md), using the [`quota` command](../cli/actions/balance-quota.md), or alternatively using the [Web Interface](../accounts/accounting/check-balance-quota.md).
-    
+
 ## Login Node Home
 
-The quota under the [login home folder](directories.md#login-home) amounts to **10 Gb**. This limited quota can be used to store and test source code or scripts. 
+The quota under the [login home folder](directories.md#login-home) amounts to **10 Gb**. This limited quota can be used to store and test source code or scripts.
 
 ## Cluster Home directory
 
@@ -29,4 +29,4 @@ In order to facilitate the accessibility of the [Dropbox directory](../data-in-o
 
 ## Links
 
-[^1] [Disk Quota, Wikipedia](https://en.wikipedia.org/wiki/Disk_quota)
+[^1]: [Disk Quota, Wikipedia](https://en.wikipedia.org/wiki/Disk_quota)

lang/en/docs/materials/data.md

@@ -48,4 +48,4 @@ As seen above, we use the crystal **lattice** and **basis** JSON objects as the
  For every material imported/uploaded to our platform, we pre-calculate a set of such descriptors, and store them inside this "derivedProperties" section. This information can be further used during data analysis or the construction of statistical predictive models.
 
 ## Links
-[^1] [Wikipedia: International Chemical Identifer (InChI) Website](https://en.wikipedia.org/wiki/International_Chemical_Identifier)
+[^1]: [Wikipedia: International Chemical Identifer (InChI) Website](https://en.wikipedia.org/wiki/International_Chemical_Identifier)