[skip ci] Migration doc : move hydro level from v8.7.0 to v9.2.0 (#2482)

Co-authored-by: Guillaume PIERRE <[email protected]>
Co-authored-by: Florian Omnès <[email protected]>

docs/user-guide/04-migration-guides.md

@@ -41,6 +41,11 @@ In files input/links/<link1>/properties.ini, add the following properties
 - number of TS to generate => generaldata.ini/General/nbtimeserieslinks (unsigned int, default value 1)
 
 
+### Input
+#### Hydro Final Reservoir Level
+In the existing file **settings/scenariobuilder.dat**, under **&lt;ruleset&gt;** section following properties added (if final reservoir level specified, different from `init`):
+* **hfl,&lt;area&gt;,&lt;year&gt; = &lt;hfl-value&gt;**
+
 ### Output
 - Remove column SPIL ENRG CSR (adequacy patch)
 - Add DTG MRG CSR and UNSP ENRG CSR variables
@@ -154,10 +159,6 @@ For each thermal cluster, in existing file **input/thermal/clusters/&lt;area&gt;
 
 For each thermal cluster, new files added **input/thermal/series/&lt;area&gt;/&lt;cluster&gt;/CO2Cost.txt** and **input/thermal/series/&lt;area&gt;/&lt;cluster&gt;/fuelCost.txt**. **fuelCost.txt** and **CO2Cost.txt** must either have one column, or the same number of columns as existing file **series.txt** (availability). The number of rows for these new matrices is 8760.
 
-#### Hydro Final Reservoir Level
-In the existing file **settings/scenariobuilder.dat**, under **&lt;ruleset&gt;** section following properties added (if final reservoir level specified, different from `init`):
-* **hfl,&lt;area&gt;,&lt;year&gt; = &lt;hfl-value&gt;**
-
 ### Output
 #### Scenarized RHS for binding constraints
 Add directory **bindingconstraints** to output directory **ts-numbers**. For every binding constraint group, add a file **ts-numbers/bindingconstraints/&lt;group&gt;.txt** containing the TS numbers used for that group.